[dependabot]

Bumps opensheetmusicdisplay from 1.9.9 to 2.0.0.

Release notes

Sourced from opensheetmusicdisplay's releases.

2.0.0

OSMD 2.0 now renders about twice as fast! 🎉 Also, we added lazy / incremental rendering, so even if OSMD is still not fast enough for your huge scores on slow devices, you can now render one system ("line") at a time to get a fast first render, and e.g. render more when scrolling.

But that's by far not all, this release is a bit of a big one. We also implemented tremolo between notes, slurs crossing staffs (e.g. left to right hand), made stafflines always crisp, and more!

See the Changelog:

2.0.0 (2026-06-15)

Features

• MeasureNumber: Don't render measure numbers for implicit measures (e.g. implicit="yes" in MusicXML) by default (#1574). Add EngravingRule RenderMeasureNumbersForImplicitMeasures (3042567)
• Performance: OSMD renders twice as fast now: Calculate skylines geometrically instead of reading canvas pixels (getImageData): average 1.8x speedup, up to 4x faster depending on sample. Importantly, faster for long samples (#1681, #937) (f1ef0d7)
• Performance: Cache flattened glyph outline segments for the geometric skyline calculation (#1681, #937) (f976d48)
• Rendering: Add incremental/lazy rendering, "system by system" / "line by line", to get a fast first render for large scores (renderNext API, [PR #1690](opensheetmusicdisplay/opensheetmusicdisplay#1690), #1604, #1554) (4b3bff8)
• Slurs: Render cross-staff slurs, e.g. left hand to right hand (#1006) (21c99c0)
• Slurs: Add EngravingRule RenderSlursAcrossStaves (default true) to toggle cross-staff slurs (#1006) (816ae81)
• TimeSignature: Don't render time signature for samples without one (e.g. Satie Gnossiennes) (#1574). Add EngravingRule RenderTimeSignaturesForSamplesWithoutTimeSignature (default false) (a6a6820)
• Tremolo: Render tremolos between two notes (e.g. two alternating half notes) (#1551, PR #1680). Also: read tremolo without type attribute as single note tremolo (d59e1d1)
• Tuplet: Render nested tuplets (#1583) (cfcc2a6)

Bug Fixes

• AutoResize: Don't re-render the first loaded sheet a second time (in the demo) (#1684, #1683, #1681 follow-up) (7a4a66e)
• Cursor: Prevent clone() not being independent / sharing data due to shallow copy in MusicPartManagerIterator (#1674, PR #1675) (77e9b58)
• Layout: Fix key change extra graphical measure cut off at end of staffline. Give extra instruction measures (mid-piece key/rhythm changes) their correct width (#869, #1681)
• Layout: Make re-renders identical to the first render: reset per-render VexFlow state (#1683, #1681, #937) (0995df0), closes #1684
• Notes: Don't stagger/x-shift a unison between two voices in a three-voice stave (PR #1677) (52e2ef5)
• Notes: Merge unison noteheads that differ only in dots (PR #1678) (abf5475)
• Stafflines: Crisp and consistent staffline strokes: Round staffline/system distances to half pixels for consistent staff line anti-aliasing. new EngravingRule SnapStafflinesToCrispPixels, default true (#1681, #937) (aa94e20)
• Recalculate: Keep pageWidth stable for RenderSingleHorizontalStaffline (idempotent re-render) (ce2d3a2)
• Rehearsal Marks: Fix overlaps with notes by lifting above high notes (#919) (e397348)
• Rehearsal Marks: Lift rehearsal marks above chord symbols to prevent overlap, reserve skyline space (#919) (5217af0)
• Tuplet: Align cross-staff tuplet notes with simultaneous notes in other voices (PR #1676) (4b2c8a2), closes #1631
• Unison: Render stem of a beamed note whose notehead is hidden behind a unison in another voice, e.g. Moonlight Sonata m.37 (#1038) (b00e9fe)

Changelog

Sourced from opensheetmusicdisplay's changelog.

2.0.0 (2026-06-15)

Features

• MeasureNumber: Don't render measure numbers for implicit measures (e.g. implicit="yes" in MusicXML) by default (#1574). Add EngravingRule RenderMeasureNumbersForImplicitMeasures (3042567)
• Performance: OSMD renders twice as fast now: Calculate skylines geometrically instead of reading canvas pixels (getImageData): average 1.8x speedup, up to 4x faster depending on sample. Importantly, faster for long samples (#1681, #937) (f1ef0d7)
• Performance: Cache flattened glyph outline segments for the geometric skyline calculation (#1681, #937) (f976d48)
• Rendering: Add incremental/lazy rendering, "system by system" / "line by line", to get a fast first render for large scores (renderNext API, [PR #1690](opensheetmusicdisplay/opensheetmusicdisplay#1690), #1604, #1554) (4b3bff8)
• Slurs: Render cross-staff slurs, e.g. left hand to right hand (#1006) (21c99c0)
• Slurs: Add EngravingRule RenderSlursAcrossStaves (default true) to toggle cross-staff slurs (#1006) (816ae81)
• TimeSignature: Don't render time signature for samples without one (e.g. Satie Gnossiennes) (#1574). Add EngravingRule RenderTimeSignaturesForSamplesWithoutTimeSignature (default false) (a6a6820)
• Tremolo: Render tremolos between two notes (e.g. two alternating half notes) (#1551, PR #1680). Also: read tremolo without type attribute as single note tremolo (d59e1d1)
• Tuplet: Render nested tuplets (#1583) (cfcc2a6)

Bug Fixes

• AutoResize: Don't re-render the first loaded sheet a second time (in the demo) (#1684, #1683, #1681 follow-up) (7a4a66e)
• Cursor: Prevent clone() not being independent / sharing data due to shallow copy in MusicPartManagerIterator (#1674, PR #1675) (77e9b58)
• Layout: Fix key change extra graphical measure cut off at end of staffline. Give extra instruction measures (mid-piece key/rhythm changes) their correct width (#869, #1681)
• Layout: Make re-renders identical to the first render: reset per-render VexFlow state (#1683, #1681, #937) (0995df0), closes #1684
• Notes: Don't stagger/x-shift a unison between two voices in a three-voice stave (PR #1677) (52e2ef5)
• Notes: Merge unison noteheads that differ only in dots (PR #1678) (abf5475)
• Stafflines: Crisp and consistent staffline strokes: Round staffline/system distances to half pixels for consistent staff line anti-aliasing. new EngravingRule SnapStafflinesToCrispPixels, default true (#1681, #937) (aa94e20)
• Recalculate: Keep pageWidth stable for RenderSingleHorizontalStaffline (idempotent re-render) (ce2d3a2)
• Rehearsal Marks: Fix overlaps with notes by lifting above high notes (#919) (e397348)
• Rehearsal Marks: Lift rehearsal marks above chord symbols to prevent overlap, reserve skyline space (#919) (5217af0)
• Tuplet: Align cross-staff tuplet notes with simultaneous notes in other voices (PR #1676) (4b2c8a2), closes #1631
• Unison: Render stem of a beamed note whose notehead is hidden behind a unison in another voice, e.g. Moonlight Sonata m.37 (#1038) (b00e9fe)

Commits

• 0463b84 chore: update changelog for 2.0.0
• d940c77 chore: bump version to 2.0.0
• 1306ee7 chore: fix moved jsdoc comment, move IRenderNextOptions and IRenderNextResult...
• 82ccad1 feat(Rendering): Add incremental/lazy rendering, "system by system" / "line b...
• 4b3bff8 feat(rendering): add incremental "system by system" rendering (renderNext API...
• e397348 fix(Rehearsal Marks): Fix overlaps with notes by lifting above high notes (#919)
• ce2d3a2 fix(Recalculate): Keep pageWidth stable for RenderSingleHorizontalStaffline (...
• b34a94e fix demo: Center the header and sample selector over the score, not the whole...
• 5cd5194 chore(demo): Remove the Render backend (SVG/Canvas) selection from the demo
• d4581a4 fix demo: Avoid a possible controls-sidebar horizontal scrollbar and tighten ...
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Project	Deployment	Actions	Updated (UTC)
stafflines	Ready	Preview, Comment	Jul 1, 2026 3:37am

[dependabot]

Superseded by #24.