Astra · page
OMR-NED 0.053
Joseph Haydn · String Quartet in D minor, Hob.III:76, Op.76 No.2
OMR test: full results
High effort runs · Chris Cho
Every transcription from the high effort runs: scanned pages of printed string quartets, read by GPT-6 Astra, GPT-6.1 Sol, Claude Opus 5.5, Claude Fable 5.1, and Audiveris, then compared with OpenScore's transcription of the same pages. Lower OMR-NED is better.
8 pages64/64 model exports5/8 Audiveris exportsHigh model effort
Best exported page per workflow
These examples have the lowest OMR-NED among exported pages in each workflow. Select one to inspect every source crop and the rendered transcription.
Astra · crops
OMR-NED 0.054
Antonín Dvořák · String Quartet No.10, Op.51
Fable · page
OMR-NED 0.477
Joseph Haydn · String Quartet in D minor, Hob.III:76, Op.76 No.2
Fable · crops
OMR-NED 0.327
Joseph Haydn · String Quartet in D minor, Hob.III:76, Op.76 No.2
Opus · page
OMR-NED 0.294
Joseph Haydn · String Quartet in D minor, Hob.III:76, Op.76 No.2
Opus · crops
OMR-NED 0.333
Antonín Dvořák · String Quartet No.10, Op.51
Sol · page
OMR-NED 0.032
Franz Schubert · String Quartet in D minor, D.810, No.14 (“Death and the Maiden”)
Sol · crops
OMR-NED 0.047
Antonín Dvořák · String Quartet No.10, Op.51
Audiveris · page
OMR-NED 0.451
Edward Elgar · String Quartet, Op.83
Compare all attempts
Each cell opens that attempt below. Lower OMR-NED is better; longer blue bars mean closer notation. A page with no export still gets a score, because the scorer treats the missing transcription as empty. Astra is GPT-6 Astra, Sol is GPT-6.1 Sol, Opus is Claude Opus 5.5, and Fable is Claude Fable 5.1. Under each name, page means the model was given the full page, and crops means it was also given a separate image of each line of music.
Attempt workspace
Open an attempt to compare its source systems with the rendered transcription. Red means pitch, rhythm, or extra-note edits; amber means other note notation edits. The colors reflect comparison with OpenScore MusicXML, not direct image matching. Missing notes cannot be colored. The line images on the left are there for comparison. Only the runs marked crops were given them. Each line image has playback for its reference measure range. Snippets use ordinal measures and may drift after missing or inserted measures. Listen separately when simultaneous playback masks differences.
* MuseScore, the app that converts each answer to MusicXML, closed with an error right after saving this file. The file was checked as well-formed MusicXML with at least one part and was scored like the others.
Astra · page · page01 · OMR-NED 0.531 · exported MusicXML*
39,400 reported tokens in 9 min 52 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (3)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page02 · OMR-NED 0.122 · exported MusicXML*
36,143 reported tokens in 8 min 18 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page03 · OMR-NED 0.107 · exported MusicXML
26,688 reported tokens in 3 min 29 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page04 · OMR-NED 0.147 · exported MusicXML*
28,471 reported tokens in 4 min 28 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page05 · OMR-NED 0.320 · exported MusicXML*
42,242 reported tokens in 11 min 16 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page06 · OMR-NED 0.167 · exported MusicXML*
28,365 reported tokens in 4 min 20 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page07 · OMR-NED 0.434 · exported MusicXML*
1,723,894 reported tokens in 15 min 52 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · page · page08 · OMR-NED 0.053 · exported MusicXML*
34,287 reported tokens in 7 min 51 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page01 · OMR-NED 0.453 · exported MusicXML*
45,781 reported tokens in 12 min 14 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page02 · OMR-NED 0.183 · exported MusicXML*
33,629 reported tokens in 6 min 36 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page03 · OMR-NED 0.117 · exported MusicXML*
29,776 reported tokens in 4 min 16 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page04 · OMR-NED 0.054 · exported MusicXML
37,017 reported tokens in 7 min 47 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page05 · OMR-NED 0.447 · exported MusicXML
37,765 reported tokens in 8 min 11 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page06 · OMR-NED 0.163 · exported MusicXML
33,192 reported tokens in 5 min 53 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page07 · OMR-NED 0.511 · exported MusicXML*
35,731 reported tokens in 6 min 58 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Astra · crops · page08 · OMR-NED 0.159 · exported MusicXML*
37,792 reported tokens in 8 min 21 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Astra transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Astra diff: mismatched notes
Fable · page · page01 · OMR-NED 0.653 · exported MusicXML*
81,878 reported tokens in 15 min 46 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (3)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page02 · OMR-NED 0.477 · exported MusicXML*
16,754 reported tokens in 1 min 53 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page03 · OMR-NED 0.542 · exported MusicXML
19,879 reported tokens in 2 min 31 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page04 · OMR-NED 0.594 · exported MusicXML*
24,687 reported tokens in 3 min 28 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page05 · OMR-NED 0.745 · exported MusicXML*
24,496 reported tokens in 3 min 19 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (5)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page06 · OMR-NED 0.486 · exported MusicXML
21,259 reported tokens in 2 min 38 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page07 · OMR-NED 0.762 · exported MusicXML*
68,462 reported tokens in 11 min 14 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · page · page08 · OMR-NED 0.796 · exported MusicXML*
35,795 reported tokens in 4 min 54 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page01 · OMR-NED 0.622 · exported MusicXML
86,340 reported tokens in 15 min 59 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page02 · OMR-NED 0.327 · exported MusicXML*
50,354 reported tokens in 8 min 17 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page03 · OMR-NED 0.522 · exported MusicXML*
22,831 reported tokens in 2 min 24 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page04 · OMR-NED 0.421 · exported MusicXML*
30,812 reported tokens in 3 min 47 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page05 · OMR-NED 0.500 · exported MusicXML*
42,819 reported tokens in 6 min 24 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page06 · OMR-NED 0.371 · exported MusicXML*
35,067 reported tokens in 4 min 58 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page07 · OMR-NED 0.661 · exported MusicXML*
154,340 reported tokens in 26 min 42 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Fable · crops · page08 · OMR-NED 0.656 · exported MusicXML*
65,855 reported tokens in 10 min 29 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Fable transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Fable diff: mismatched notes
Opus · page · page01 · OMR-NED 0.666 · exported MusicXML*
55,869 reported tokens in 8 min 4 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page02 · OMR-NED 0.433 · exported MusicXML*
37,454 reported tokens in 5 min 15 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page03 · OMR-NED 0.507 · exported MusicXML*
20,034 reported tokens in 2 min 10 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page04 · OMR-NED 0.615 · exported MusicXML
18,112 reported tokens in 2 min 4 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page05 · OMR-NED 0.586 · exported MusicXML*
27,691 reported tokens in 3 min 9 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page06 · OMR-NED 0.451 · exported MusicXML*
27,821 reported tokens in 3 min 27 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page07 · OMR-NED 0.580 · exported MusicXML*
42,445 reported tokens in 5 min 41 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (3)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · page · page08 · OMR-NED 0.294 · exported MusicXML
20,673 reported tokens in 2 min 18 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page01 · OMR-NED 0.640 · exported MusicXML*
53,786 reported tokens in 7 min 53 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page02 · OMR-NED 0.343 · exported MusicXML*
62,990 reported tokens in 9 min 5 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page03 · OMR-NED 0.673 · exported MusicXML
25,468 reported tokens in 2 min 22 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page04 · OMR-NED 0.333 · exported MusicXML*
41,855 reported tokens in 5 min 15 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page05 · OMR-NED 0.533 · exported MusicXML
39,622 reported tokens in 4 min 29 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page06 · OMR-NED 0.439 · exported MusicXML*
13,496 reported tokens in 1 min 23 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page07 · OMR-NED 0.540 · exported MusicXML
29,762 reported tokens in 4 min 3 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Opus · crops · page08 · OMR-NED 0.363 · exported MusicXML*
14,116 reported tokens in 1 min 34 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Opus transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Opus diff: mismatched notes
Sol · page · page01 · OMR-NED 0.032 · exported MusicXML*
3,010,659 reported tokens in 18 min 30 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (3)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page02 · OMR-NED 0.214 · exported MusicXML*
1,839,421 reported tokens in 16 min 4 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page03 · OMR-NED 0.152 · exported MusicXML*
31,857 reported tokens in 4 min 59 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page04 · OMR-NED 0.064 · exported MusicXML
542,032 reported tokens in 7 min 12 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page05 · OMR-NED 0.082 · exported MusicXML*
819,867 reported tokens in 11 min 43 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page06 · OMR-NED 0.212 · exported MusicXML*
38,043 reported tokens in 7 min 35 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page07 · OMR-NED 0.415 · exported MusicXML*
2,656,404 reported tokens in 18 min 41 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · page · page08 · OMR-NED 0.176 · exported MusicXML*
715,622 reported tokens in 7 min 25 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page01 · OMR-NED 0.350 · exported MusicXML*
3,013,017 reported tokens in 19 min 42 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Transcription: pitch and rhythm in red; other notation in amber (3)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page02 · OMR-NED 0.295 · exported MusicXML
42,341 reported tokens in 9 min 13 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page03 · OMR-NED 0.281 · exported MusicXML*
478,723 reported tokens in 7 min 52 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page04 · OMR-NED 0.117 · exported MusicXML*
33,468 reported tokens in 4 min 49 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page05 · OMR-NED 0.495 · exported MusicXML*
50,231 reported tokens in 10 min 47 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page06 · OMR-NED 0.047 · exported MusicXML
429,354 reported tokens in 7 min 37 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page07 · OMR-NED 0.425 · exported MusicXML*
1,911,545 reported tokens in 18 min 23 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Transcription: pitch and rhythm in red; other notation in amber (4)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Sol · crops · page08 · OMR-NED 0.172 · exported MusicXML*
36,778 reported tokens in 5 min 57 s. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Sol transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Sol diff: mismatched notes
Audiveris · page · page01 · OMR-NED 0.831 · exported MusicXML
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–10
System 3 · reference measures 11–14
System 4 · reference measures 15–18
System 5 · reference measures 19–22
Rendered transcription page (2)
OpenScore reference
Audiveris transcription
Audiveris · page · page02 · OMR-NED 0.612 · exported MusicXML
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
Rendered transcription page (2)
OpenScore reference
Audiveris transcription
Audiveris · page · page03 · OMR-NED 0.451 · exported MusicXML
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–5
System 2 · reference measures 6–9
System 3 · reference measures 10–12
Rendered transcription page (2)
OpenScore reference
Audiveris transcription
Audiveris · page · page04 · OMR-NED 0.591 · exported MusicXML
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–7
System 2 · reference measures 8–13
System 3 · reference measures 14–19
System 4 · reference measures 20–25
Transcription: pitch and rhythm in red; other notation in amber (2)
OpenScore reference
Audiveris transcription
Diff tracks play only notes that sound different: reference notes the transcription missed or changed, and transcription notes with wrong pitch, accidental, duration, tie, or tuplet, or with no match. Matching notes become rests, so diff timing follows each full track.
Reference diff: missed or changed notes
Audiveris diff: mismatched notes
Audiveris · page · page05 · OMR-NED 1.000 · no MusicXML export
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–6
System 2 · reference measures 7–11
System 3 · reference measures 12–15
System 4 · reference measures 16–19
System 5 · reference measures 20–23
Rendered transcription page unavailable.
OpenScore reference
Transcription audio unavailable.
Why there is no file
Audiveris stopped before it could export a MusicXML file for this page.
Audiveris · page · page06 · OMR-NED 1.000 · no MusicXML export
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–10
System 2 · reference measures 11–19
System 3 · reference measures 20–26
System 4 · reference measures 27–32
Rendered transcription page unavailable.
OpenScore reference
Transcription audio unavailable.
Why there is no file
Audiveris stopped before it could export a MusicXML file for this page.
Audiveris · page · page07 · OMR-NED 1.000 · no MusicXML export
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–13
System 2 · reference measures 14–25
System 3 · reference measures 26–31
System 4 · reference measures 32–37
System 5 · reference measures 38–43
Rendered transcription page unavailable.
OpenScore reference
Transcription audio unavailable.
Why there is no file
Audiveris stopped before it could export a MusicXML file for this page.
Audiveris · page · page08 · OMR-NED 0.648 · exported MusicXML
Token counts not applicable. Red marks show pitch, rhythm, or extra-note edits; amber marks show other note notation edits such as beaming. The comparison is to OpenScore MusicXML, so a colored note can have the correct pitch. Missing notes have no glyph to color. Playback clips use ordinal reference measures and may drift after missing measures.
System 1 · reference measures 1–4
System 2 · reference measures 5–8
System 3 · reference measures 9–13
System 4 · reference measures 14–17
Rendered transcription page (2)
OpenScore reference
Audiveris transcription
Results and errors
Full comparison and token totals
OMR-NED by model and image condition; shorter bars are better. Bars use the same 0–1 scale.
Astra · page
Medium0.418
High0.295
Astra · crops
Medium0.454
High0.319
Fable · page
Medium0.679
High0.659
Fable · crops
Medium0.710
High0.526
Opus · page
Medium0.609
High0.541
Opus · crops
Medium0.560
High0.496
Sol · page
Medium0.549
High0.171
Sol · crops
Medium0.522
High0.321
Audiveris · baseline
Baseline0.763
Audiveris has one fixed baseline, with no effort or token count.
| Model | Condition | Medium Omr Ned | High Omr Ned | Ned Reduction Pct | Pages Improved | Pages Worsened | Pages Tied | Paired Export Pages | Paired Export Pages Improved | Medium Total Tokens | High Total Tokens |
|---|---|---|---|---|---|---|---|---|---|---|---|
| astra | page | 0.4184829700726521 | 0.29538423841465283 | 29.4 | 7 | 1 | 0 | 8 | 7 | 222213 | 1959490 |
| astra | crops | 0.453959984080466 | 0.3185366650334803 | 29.8 | 7 | 1 | 0 | 7 | 6 | 232613 | 290683 |
| fable | page | 0.6790634117516712 | 0.6585986839929902 | 3.0 | 5 | 3 | 0 | 7 | 4 | 143540 | 293210 |
| fable | crops | 0.7096817736982418 | 0.5263674187328755 | 25.8 | 7 | 1 | 0 | 8 | 7 | 141838 | 488418 |
| opus | page | 0.6094737565265183 | 0.54072696534235 | 11.3 | 7 | 1 | 0 | 8 | 7 | 126503 | 250099 |
| opus | crops | 0.5602175334733074 | 0.49638464657386133 | 11.4 | 5 | 3 | 0 | 8 | 5 | 142875 | 281095 |
| sol | page | 0.5485149823251512 | 0.1711252516070385 | 68.8 | 8 | 0 | 0 | 8 | 8 | 504636 | 9653905 |
| sol | crops | 0.5223428427164858 | 0.3212698801826372 | 38.5 | 7 | 1 | 0 | 7 | 6 | 559391 | 5995457 |
Column guide
- Model
- Model used for the transcription.
- Condition
- Page scan alone, or page scan plus system crops.
- Medium Omr Ned
- Aggregate normalized edit distance at medium effort; lower is better.
- High Omr Ned
- Aggregate normalized edit distance at high effort; lower is better.
- Ned Reduction Pct
- Percentage decrease from medium to high aggregate OMR-NED; negative means worse.
- Pages Improved
- Pages whose high-effort OMR-NED fell, including pages with no medium export.
- Pages Worsened
- Pages whose high-effort OMR-NED rose.
- Pages Tied
- Pages with equal OMR-NED at both efforts.
- Paired Export Pages
- Pages with MusicXML exports at both efforts.
- Paired Export Pages Improved
- Those paired export pages whose high-effort OMR-NED fell.
- Medium Total Tokens
- Reported tokens summed over 8 medium-effort calls.
- High Total Tokens
- Reported tokens summed over 8 high-effort calls.
Paired export counts exclude medium pages without a MusicXML export.
Audiveris baseline
Aggregate OMR-NED 0.763; 5 of 8 pages exported MusicXML. Audiveris used the same full-page scans, enlarged 3×, with OCR languages eng+deu+fra+ita. It is dedicated OMR software with a neural glyph classifier; it has no effort or token setting comparable to the model calls.
| Page | Composer | String quartet | OMR-NED | Outcome |
|---|---|---|---|---|
| page01 | Franz Schubert | String Quartet in D minor, D.810, No.14 (“Death and the Maiden”) | 0.831 | exported MusicXML |
| page02 | Joseph Haydn | String Quartet in D minor, Hob.III:76, Op.76 No.2 | 0.612 | exported MusicXML |
| page03 | Edward Elgar | String Quartet, Op.83 | 0.451 | exported MusicXML |
| page04 | Antonín Dvořák | String Quartet No.10, Op.51 | 0.591 | exported MusicXML |
| page05 | Ludwig van Beethoven | String Quartet No.1, Op.18 No.1 | 1.000 | no MusicXML export |
| page06 | Antonín Dvořák | String Quartet No.10, Op.51 | 1.000 | no MusicXML export |
| page07 | Franz Schubert | String Quartet in D minor, D.810, No.14 (“Death and the Maiden”) | 1.000 | no MusicXML export |
| page08 | Joseph Haydn | String Quartet in D minor, Hob.III:76, Op.76 No.2 | 0.648 | exported MusicXML |
Frontier-model conversion outcomes
Each answer is ABC text that MuseScore converts to a MusicXML file. This table counts how that last step ended for the 64 runs. Every run produced a file. A star means MuseScore saved the file and then closed with an error while shutting down. No star means it saved the file and exited normally.
| Outcome | Runs |
|---|---|
| exported MusicXML, MuseScore closed with an error after saving* | 49 |
| exported MusicXML, MuseScore exited normally | 15 |
* MuseScore, the app that converts each answer to MusicXML, closed with an error right after saving this file. The file was checked as well-formed MusicXML with at least one part and was scored like the others.
Reported tokens
| Model | Images | Calls with usage | Processed input | Output | Median total / call | Total run time | Median run time / call |
|---|---|---|---|---|---|---|---|
| astra | crops | 8 | 173,462 | 117,221 | 36,374 | 60 min 16 s | 7 min 22 s |
| astra | page | 8 | 1,827,973 | 131,517 | 35,215 | 65 min 26 s | 8 min 4 s |
| fable | crops | 8 | 127,154 | 361,264 | 46,586 | 79 min 0 s | 7 min 20 s |
| fable | page | 8 | 79,522 | 213,688 | 24,592 | 45 min 43 s | 3 min 24 s |
| opus | crops | 8 | 83,434 | 197,661 | 34,692 | 36 min 4 s | 4 min 16 s |
| opus | page | 8 | 69,254 | 180,845 | 27,756 | 32 min 8 s | 3 min 18 s |
| sol | crops | 8 | 5,789,592 | 205,865 | 239,792 | 84 min 20 s | 8 min 32 s |
| sol | page | 8 | 9,430,163 | 223,742 | 767,744 | 92 min 9 s | 9 min 39 s |
Largest notation error costs
Top three musicdiff edit costs per workflow, including the missing measures on pages with no export. All bars use the same 0–13,733 scale; longer means more edit cost.
Astra · page
wrong note6,795
wrong flag/beam620
entire measure insert/delete569
Astra · crops
wrong note6,733
entire measure insert/delete996
wrong flag/beam538
Fable · page
wrong note13,733
entire measure insert/delete4,359
wrong slur391
Fable · crops
wrong note10,653
entire measure insert/delete3,059
wrong direction404
Opus · page
wrong note10,436
entire measure insert/delete3,637
wrong direction369
Opus · crops
wrong note10,439
entire measure insert/delete2,532
wrong slur424
Sol · page
wrong note2,426
wrong flag/beam906
entire measure insert/delete593
Sol · crops
wrong note7,958
wrong flag/beam554
wrong tuplet424
Methods
Playback uses violin I, violin II, viola, and cello sounds. Diff tracks keep only the notes that sound different between reference and transcription, with matched notes turned into rests. Dynamics pp through mp play at mf; f and louder stay as written. Playback-only changes do not affect scoring.
Scoring, workflow, and playback methods
How to read OMR-NED
OMR-NED is short for OMR normalized edit distance. It's an error rate built from the following sums:
- The edits. How many symbols you'd have to insert or delete to turn the transcription into the correct score. A wrong symbol counts twice, once to delete it and once to insert the right one.
- The size of both scores. How many symbols the transcription and the correct score contain, added together. A symbol is one visual piece of notation. A single note can be several of them: its pitch, its note head, each flag or beam, each dot, an accidental, a tie.
Divide the first sum by the second and you get a number from zero to one. Zero means the two scores match. One means they have nothing in common. Accuracy is one minus that number:
Accuracy = 1 − OMR-NED = 1 − (I + D) / (Npred + Nref)
- I: symbols inserted
- D: symbols deleted
- Npred: symbols in the transcription
- Nref: symbols in the correct score
It counts symbols, not notes, so slurs, dynamics, and beams count along with pitches. This page shows OMR-NED itself, so lower is better. A page with no file is scored as an empty transcription, which gives 1.
For example, 229 edits with 1,068 symbols in the correct score and 1,072 in the transcription gives 229 ÷ (1,068 + 1,072) = 0.107. The score across all pages divides the sum of every page's edits by the sum of every page's symbols, so it is not the average of the page scores. Each run gets one score for the whole page, whether or not it was also given the separate line images. Playback-only changes to dynamics do not affect the score.
Where the page images come from
The page images are scans of printed editions from IMSLP, a library of public domain sheet music. They were downloaded from the OpenScore String Quartets page set published with LEGATO, which pairs each scan with OpenScore's transcription of the same page. The models and Audiveris were given the scans. OpenScore's transcription was used only as the answer key, and for the reference playback.
Why some runs have line images
Each model read each page two ways: the full page alone (page), and the full page plus a separate image of each line of music (crops). The line images were cut from the same scan before the test, at the same size, to see whether giving each line its own image would help. The models did not cut anything up as part of this setting. This page shows the line images beside every transcription so you can compare one line at a time, but only the crops runs were given them.
Harness versions and run times
The OpenAI models ran in Codex CLI 0.157.0 and the Claude models ran in Claude Code 2.1.282. Both versions were recorded on 2026-09-25, before the first run. The high effort runs took place from 2026-09-29 to 2026-10-07 (UTC), and the versions were not checked again for each run.
A run's time is the wall-clock time from starting the command to its exit. It does not include converting the answer to MusicXML. Many runs overlapped, so a time reflects the load at that moment as well as the model's speed. Audiveris run times were not recorded.
How the workflows transcribe a scan
| Workflow | Visible input and output path |
|---|---|
| Astra (Codex CLI) | Page or page plus system crops → four-voice ABC → LEGATO cleanup → ABC to MusicXML → MuseScore 4 |
| Fable (Claude Code) | Same images, prompt, ABC output, and conversion path as Astra |
| Opus 5.5 (Claude Code) | Same images, prompt, ABC output, and conversion path as Astra |
| Sol (GPT-6.1 Sol, Codex CLI) | Same images, prompt, ABC output, Codex settings, and conversion path as Astra |
| Audiveris 5.11 | 3× enlarged full page → dedicated staff, symbol, text, and rhythm analysis → direct MusicXML export |
The model prompt forbids reference MusicXML, web, skills, and MCP tools. The tools were not the same for every model. Codex let the OpenAI models run commands, and Sol used that to crop and enlarge the scan on six of the eight pages. The Claude models could only open the image, so these results might make them look worse than they are. Audiveris includes a neural glyph classifier. The frontier models’ internal image-reading methods are not visible in these runs.