musescore/MuseScore
Jan 2024 – Feb 2026
17 Months active
Languages Used
C++JavaScriptQMLCMakeHeaderXMLMSCZMSS
Technical Skills
C++ developmentSoftware engineeringUI designC++ programmingmusic notation software developmentC++
XiaoMigros
PROFILE
Xiaomigros
Xiaomigros3 contributed extensively to the musescore/MuseScore repository, focusing on advancing music engraving, notation rendering, and plugin extensibility. Over 17 months, they engineered features such as cross-staff arpeggio rendering, customizable text line styles, and expanded the engraving API to support complex notations. Their technical approach emphasized maintainable C++ and QML code, with careful refactoring to improve code clarity and reliability. Xiaomigros3 addressed workflow pain points by refining selection logic, enhancing MIDI export accuracy, and improving UI/UX for editing and playback. Their work demonstrated depth in algorithm design, API development, and cross-platform software engineering, resulting in robust, user-focused improvements.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
154Total
Bugs
25
Commits
154
Features
71
Lines of code
17,826
Activity Months17
Work History
February 2026
4 Commits • 2 Features
Feb 1, 2026February 2026 (Month: 2026-02) – MuseScore development focused on sharpening editing reliability and workflow efficiency through targeted UI/UX fixes, enhanced selection behavior, and convenient editing commands.
4 Commits • 2 Features
Feb 1, 2026February 2026 (Month: 2026-02) – MuseScore development focused on sharpening editing reliability and workflow efficiency through targeted UI/UX fixes, enhanced selection behavior, and convenient editing commands.
February 2026
January 2026
17 Commits • 7 Features
Jan 1, 2026January 2026 was focused on delivering robust engraving capabilities, improving playback UX, and strengthening the codebase for future expansion. Key features delivered included playback annotation control (adding a PlayTechAnnotations state and updated playback logic), and a marker types overhaul to correctly apply Segno, Coda, and Fine in engraving and score annotations. We also delivered harmony/hairpin UX improvements, with refined selection behavior and presets to reduce noise in editing workflows. Chord bracket editing was enhanced with inclusion in range selection and support for horizontal and vertical flips. The engraving API was expanded with new types and properties to represent more complex notations, enabling richer scores. Editing operations were improved to preserve more elements during edits and to streamline hairpin editing. A targeted bug fix addressed makeGap handling to respect tuplet boundaries and prevent rendering errors. In addition, targeted code cleanup and internal refactors reduced unused enums and exposed internal APIs, laying groundwork for maintainability and future performance improvements.
January 2026
17 Commits • 7 Features
Jan 1, 2026January 2026 was focused on delivering robust engraving capabilities, improving playback UX, and strengthening the codebase for future expansion. Key features delivered included playback annotation control (adding a PlayTechAnnotations state and updated playback logic), and a marker types overhaul to correctly apply Segno, Coda, and Fine in engraving and score annotations. We also delivered harmony/hairpin UX improvements, with refined selection behavior and presets to reduce noise in editing workflows. Chord bracket editing was enhanced with inclusion in range selection and support for horizontal and vertical flips. The engraving API was expanded with new types and properties to represent more complex notations, enabling richer scores. Editing operations were improved to preserve more elements during edits and to streamline hairpin editing. A targeted bug fix addressed makeGap handling to respect tuplet boundaries and prevent rendering errors. In addition, targeted code cleanup and internal refactors reduced unused enums and exposed internal APIs, laying groundwork for maintainability and future performance improvements.
December 2025
9 Commits • 4 Features
Dec 1, 2025December 2025 performance summary for musescore/MuseScore: - Key feature deliveries focused on engraving accuracy, new user-assistive tooling, and code quality improvements. - Engraving improvements delivered: hairpin voice inheritance, corrected beaming tick length for irregular measures, and breath marks rendering support. - Introduced the Note Names Plugin to help users understand pitch identities. - UI clarity improvement for the Tuning Plugin: updated checkbox label to better reflect layout options. - Internal code quality enhancements and test data cleanup: safer type checks, safer casting methods, added test score data, and removal of unused stemLengthSmall style option to streamline the codebase. Overall impact: - Increased rendering accuracy and reliability, improved user onboarding for note identities, and stronger maintainability and test coverage to support faster future delivery. Technologies/skills demonstrated: - Engraving/rendering engine improvements, MuseScore plugin development, UI polish, and rigorous code quality practices including refactoring, type-safety enhancements, and test data management.
9 Commits • 4 Features
Dec 1, 2025December 2025 performance summary for musescore/MuseScore: - Key feature deliveries focused on engraving accuracy, new user-assistive tooling, and code quality improvements. - Engraving improvements delivered: hairpin voice inheritance, corrected beaming tick length for irregular measures, and breath marks rendering support. - Introduced the Note Names Plugin to help users understand pitch identities. - UI clarity improvement for the Tuning Plugin: updated checkbox label to better reflect layout options. - Internal code quality enhancements and test data cleanup: safer type checks, safer casting methods, added test score data, and removal of unused stemLengthSmall style option to streamline the codebase. Overall impact: - Increased rendering accuracy and reliability, improved user onboarding for note identities, and stronger maintainability and test coverage to support faster future delivery. Technologies/skills demonstrated: - Engraving/rendering engine improvements, MuseScore plugin development, UI polish, and rigorous code quality practices including refactoring, type-safety enhancements, and test data management.
December 2025
November 2025
22 Commits • 7 Features
Nov 1, 2025November 2025 (MuseScore) — Key accomplishments span API surface improvements, text and layout enhancements, and targeted bug fixes, delivering a more robust engraving engine and a clearer API for plugins and downstream tools. Overall impact: stronger foundation for programmatic access, more reliable rendering across diverse scores, and reduced manual tweak needs for end users.
November 2025
22 Commits • 7 Features
Nov 1, 2025November 2025 (MuseScore) — Key accomplishments span API surface improvements, text and layout enhancements, and targeted bug fixes, delivering a more robust engraving engine and a clearer API for plugins and downstream tools. Overall impact: stronger foundation for programmatic access, more reliable rendering across diverse scores, and reduced manual tweak needs for end users.
October 2025
9 Commits • 3 Features
Oct 1, 2025October 2025 focused on strengthening MuseScore's engraving stability, readability, and API surface. The work delivered targeted core refinements, improved text styling controls, and explicit staff visibility capabilities, while fixing key notation edge cases to boost score readability and reliability for publishers. Overall, these efforts reduce downstream debugging, enable more accurate engraving, and establish foundations for future features.
9 Commits • 3 Features
Oct 1, 2025October 2025 focused on strengthening MuseScore's engraving stability, readability, and API surface. The work delivered targeted core refinements, improved text styling controls, and explicit staff visibility capabilities, while fixing key notation edge cases to boost score readability and reliability for publishers. Overall, these efforts reduce downstream debugging, enable more accurate engraving, and establish foundations for future features.
October 2025
September 2025
20 Commits • 6 Features
Sep 1, 2025September 2025 (2025-09) focused on advancing MuseScore's engraving and notation capabilities, while strengthening correctness and developer tooling. The month delivered key notation and engraving enhancements, API expansion for MuseScore 4.6, and improved support for new notation types, along with substantial code-quality improvements to reduce maintenance costs and increase reliability.
September 2025
20 Commits • 6 Features
Sep 1, 2025September 2025 (2025-09) focused on advancing MuseScore's engraving and notation capabilities, while strengthening correctness and developer tooling. The month delivered key notation and engraving enhancements, API expansion for MuseScore 4.6, and improved support for new notation types, along with substantial code-quality improvements to reduce maintenance costs and increase reliability.
August 2025
4 Commits • 3 Features
Aug 1, 2025In August 2025, the MuseScore repository focused on reliability, extensibility, and rendering clarity through targeted refactors and new plugin capabilities. Delivered four key items that reinforce workflow efficiency for score setup, plugin integration, and notation accuracy, while improving the robustness of retrograde operations across multiple voices.
4 Commits • 3 Features
Aug 1, 2025In August 2025, the MuseScore repository focused on reliability, extensibility, and rendering clarity through targeted refactors and new plugin capabilities. Delivered four key items that reinforce workflow efficiency for score setup, plugin integration, and notation accuracy, while improving the robustness of retrograde operations across multiple voices.
August 2025
July 2025
28 Commits • 14 Features
Jul 1, 2025July 2025 MuseScore: Broadened API surface, core enhancements, and bug fixes to improve ecosystem viability and score editing reliability. Key deliveries include EngravingItem API enhancements, API exposure of drumsets, measurebase, systems and system locks, spanners, and rich chords/notes, durationElement, and tuplet features, plus core API enhancements (staff functions, ornaments exposure, score functions, part properties, EngravingObject enhancements, enum registrations, QML type declarations, and fraction utilities) and API documentation expansion. Notable commit references: EngravingItem [3dfc46a8fbc..., 3dfc46a8fbcd260a115bcaae7417e63af939cb98], Expose drumsets [5b575367b9d8a1ccc0513c9192e1fccf5c928b05], Use fractions for ticks [de0d5f6ac47c1359fdb4b519f0d205d0cbc754f5], Expose measurebase [1682d05fda626281907341dde5e283ebb978684e], Allow resetting properties [ec464a2fa7d816a53fd4c998d530cb37b46ded3d], Expose systems and system locks [92154b62cec036cd6cac732fa3eabfc013c9def1], Expose spanners [f5d506bfe911f262f2e8fc4aed789349884cb948], New features for chords & notes [0682bd454f74bbd0f1b80f43742cbf489b9a66b4], New durationElement features [007a2ec28317562db5906530acb62c76c09bda16], New tuplet features [715def36e43f6f86190d5bcf6582cc86c2934471], More ChordRest properties [3f5cd7fc9709ce86866e75998b3dba3f6c0e8c54], Core API Enhancements commits [59bc670d53eda3fcfba274bf1106dc6681ae6132, 24ef2c13b42246102ebf41a0c9fe3b85c9b37c43, 43e8a4aebc59e569ec19de442703407f455669cc, fdc0e12e803d4da80ad94d114e2cbbfb3b7be42c, 0bfadb540f34f7e771c5185619958c03c610be58, 6ee719d3435db382e561c62042642bf7687a4930, a18dd58a79911302aa9c5b7ce6f9477eedd39659, f105b787d11567fed25ed7dd29228488f38a749e], API Documentation Expansion [fb246361207b33dd2f4b9fe22bd51c671aa8f906], API Tremolo/Element Flags Bug Fixes [71e5ed9ffad8cbee7592589248dc1b620873ead6, 4be3a558de18894d57ea509b63bdf72534d7c6d2, 2047f4325f1c4b2d5f366ce223c83ad1e21dcb6f], API Comment Style Fix [a794ebe9d9528eff5951c9777ff676ce6a5f1756], Major bugs fixed include Retrograde plugin crash fixes and cross-staff accidentals deletion fix. Benefits: expanded developer surface, more automation paths, and stronger reliability for editing and plugin workflows.
July 2025
28 Commits • 14 Features
Jul 1, 2025July 2025 MuseScore: Broadened API surface, core enhancements, and bug fixes to improve ecosystem viability and score editing reliability. Key deliveries include EngravingItem API enhancements, API exposure of drumsets, measurebase, systems and system locks, spanners, and rich chords/notes, durationElement, and tuplet features, plus core API enhancements (staff functions, ornaments exposure, score functions, part properties, EngravingObject enhancements, enum registrations, QML type declarations, and fraction utilities) and API documentation expansion. Notable commit references: EngravingItem [3dfc46a8fbc..., 3dfc46a8fbcd260a115bcaae7417e63af939cb98], Expose drumsets [5b575367b9d8a1ccc0513c9192e1fccf5c928b05], Use fractions for ticks [de0d5f6ac47c1359fdb4b519f0d205d0cbc754f5], Expose measurebase [1682d05fda626281907341dde5e283ebb978684e], Allow resetting properties [ec464a2fa7d816a53fd4c998d530cb37b46ded3d], Expose systems and system locks [92154b62cec036cd6cac732fa3eabfc013c9def1], Expose spanners [f5d506bfe911f262f2e8fc4aed789349884cb948], New features for chords & notes [0682bd454f74bbd0f1b80f43742cbf489b9a66b4], New durationElement features [007a2ec28317562db5906530acb62c76c09bda16], New tuplet features [715def36e43f6f86190d5bcf6582cc86c2934471], More ChordRest properties [3f5cd7fc9709ce86866e75998b3dba3f6c0e8c54], Core API Enhancements commits [59bc670d53eda3fcfba274bf1106dc6681ae6132, 24ef2c13b42246102ebf41a0c9fe3b85c9b37c43, 43e8a4aebc59e569ec19de442703407f455669cc, fdc0e12e803d4da80ad94d114e2cbbfb3b7be42c, 0bfadb540f34f7e771c5185619958c03c610be58, 6ee719d3435db382e561c62042642bf7687a4930, a18dd58a79911302aa9c5b7ce6f9477eedd39659, f105b787d11567fed25ed7dd29228488f38a749e], API Documentation Expansion [fb246361207b33dd2f4b9fe22bd51c671aa8f906], API Tremolo/Element Flags Bug Fixes [71e5ed9ffad8cbee7592589248dc1b620873ead6, 4be3a558de18894d57ea509b63bdf72534d7c6d2, 2047f4325f1c4b2d5f366ce223c83ad1e21dcb6f], API Comment Style Fix [a794ebe9d9528eff5951c9777ff676ce6a5f1756], Major bugs fixed include Retrograde plugin crash fixes and cross-staff accidentals deletion fix. Benefits: expanded developer surface, more automation paths, and stronger reliability for editing and plugin workflows.
June 2025
23 Commits • 15 Features
Jun 1, 2025June 2025 (2025-06) — Summary: Delivered a set of user-facing enhancements, stability fixes, and architectural improvements across MuseScore, strengthening editing efficiency, export accuracy, and plugin robustness. The month focused on delivering high-value features with clear business impact and improving long-term maintainability of the codebase.
23 Commits • 15 Features
Jun 1, 2025June 2025 (2025-06) — Summary: Delivered a set of user-facing enhancements, stability fixes, and architectural improvements across MuseScore, strengthening editing efficiency, export accuracy, and plugin robustness. The month focused on delivering high-value features with clear business impact and improving long-term maintainability of the codebase.
June 2025
May 2025
1 Commits
May 1, 2025May 2025 focused on strengthening MuseScore's rendering reliability by delivering a targeted fix to MaskLayout for visible text rendering. The change ensures invisible text lines are not masked, by checking the VISIBLE property of spanner segments and rendering only those lines that are visible. This improves score readability and reduces rendering artifacts during editing and playback. The work was implemented with a concise, well-tracked commit and aligns with the project's rendering pipeline, delivering measurable improvements in UI fidelity for users working with complex scores.
May 2025
1 Commits
May 1, 2025May 2025 focused on strengthening MuseScore's rendering reliability by delivering a targeted fix to MaskLayout for visible text rendering. The change ensures invisible text lines are not masked, by checking the VISIBLE property of spanner segments and rendering only those lines that are visible. This improves score readability and reduces rendering artifacts during editing and playback. The work was implemented with a concise, well-tracked commit and aligns with the project's rendering pipeline, delivering measurable improvements in UI fidelity for users working with complex scores.
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for musescore/MuseScore focused on reliability, extensibility, and maintainability. Key customer-visible improvements, alongside foundational API work, uplift editor capabilities and plugin ecosystem while laying groundwork for future features. Key deliverables this month included improvements to hairpin editing, history tracking, plugin API surface, cross-staff notation consistency, and internal code hygiene: - Hairpin editing in dynamic popup: allows removing existing hairpins and changing hairpin type; previously, adding a hairpin of the same type was ignored. (Commit: a1a48a2bdf386e2d9c73fe387a6d27729b60cf04) - Enhanced History panel undo/redo descriptions: actions now include details about the property edited or element manipulated to improve history readability. (Commit: 3f4e375994d5def5b3f26c32ef7cbaf92ce12f05) - Plugin API expansion for MU4 compatibility: exposes a large number of MU4 properties, element types, placements, and related notation elements to plugins. (Commit: 0ba4b016ebd1ca318c7b3b7747739c2ad35137d7) - Beam height recalculation after cross-staff move: ensures beam height is updated for visual consistency after cross-staff edits. (Commit: 580234ed48bec71920716fe3e0b24805981e4e56) - Codebase cleanup and API consistency (internal refactors): standardizes prefixes, centralizes subtype logic, and updates constructors for consistency (Commits: c85f9f48992111eb2e7957fef47cb592c31444f6; f2e2adb70e4d0cff537ee8e61d3a8984ea31393b; c0b379bbee20a7f391393a4f5396dc944e6ae90a).
7 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for musescore/MuseScore focused on reliability, extensibility, and maintainability. Key customer-visible improvements, alongside foundational API work, uplift editor capabilities and plugin ecosystem while laying groundwork for future features. Key deliverables this month included improvements to hairpin editing, history tracking, plugin API surface, cross-staff notation consistency, and internal code hygiene: - Hairpin editing in dynamic popup: allows removing existing hairpins and changing hairpin type; previously, adding a hairpin of the same type was ignored. (Commit: a1a48a2bdf386e2d9c73fe387a6d27729b60cf04) - Enhanced History panel undo/redo descriptions: actions now include details about the property edited or element manipulated to improve history readability. (Commit: 3f4e375994d5def5b3f26c32ef7cbaf92ce12f05) - Plugin API expansion for MU4 compatibility: exposes a large number of MU4 properties, element types, placements, and related notation elements to plugins. (Commit: 0ba4b016ebd1ca318c7b3b7747739c2ad35137d7) - Beam height recalculation after cross-staff move: ensures beam height is updated for visual consistency after cross-staff edits. (Commit: 580234ed48bec71920716fe3e0b24805981e4e56) - Codebase cleanup and API consistency (internal refactors): standardizes prefixes, centralizes subtype logic, and updates constructors for consistency (Commits: c85f9f48992111eb2e7957fef47cb592c31444f6; f2e2adb70e4d0cff537ee8e61d3a8984ea31393b; c0b379bbee20a7f391393a4f5396dc944e6ae90a).
March 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for musescore/MuseScore: Focused on delivering a high-value rendering improvement for cross-staff notation by implementing cross-staff arpeggios within chord shapes. Updated padding table and chord layout to ensure accurate visual representation of arpeggios in cross-staff contexts, improving score readability and correctness for complex arrangements. The work enhances visual fidelity in professional scores and reduces manual correction effort. All changes are captured in a dedicated feature commit.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for musescore/MuseScore: Focused on delivering a high-value rendering improvement for cross-staff notation by implementing cross-staff arpeggios within chord shapes. Updated padding table and chord layout to ensure accurate visual representation of arpeggios in cross-staff contexts, improving score readability and correctness for complex arrangements. The work enhances visual fidelity in professional scores and reduces manual correction effort. All changes are captured in a dedicated feature commit.
November 2024
4 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for musescore/MuseScore focusing on delivering reliability, rendering accuracy, and visual consistency. Achievements include a targeted palette drop accuracy bug fix, a new tempo text playback control feature, a refactor of rendering element ordering to support future rendering logic, and a synchronization mechanism ensuring frame color stays visually consistent with text color. These efforts improve user-facing accuracy in placement and playback, reduce visual drift, and set groundwork for scalable rendering improvements.
4 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for musescore/MuseScore focusing on delivering reliability, rendering accuracy, and visual consistency. Achievements include a targeted palette drop accuracy bug fix, a new tempo text playback control feature, a refactor of rendering element ordering to support future rendering logic, and a synchronization mechanism ensuring frame color stays visually consistent with text color. These efforts improve user-facing accuracy in placement and playback, reduce visual drift, and set groundwork for scalable rendering improvements.
November 2024
October 2024
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10. Focused on delivering a feature upgrade to the engraving engine for MuseScore, with an emphasis on accuracy, maintainability, and deterministic behavior in rest merging. No major bug fixes were reported this month.
October 2024
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10. Focused on delivering a feature upgrade to the engraving engine for MuseScore, with an emphasis on accuracy, maintainability, and deterministic behavior in rest merging. No major bug fixes were reported this month.
August 2024
2 Commits • 1 Features
Aug 1, 2024August 2024 monthly summary for musescore/MuseScore focusing on engraving improvements. Delivered two engraving-related updates: a bug fix to disable the Play toggle for text- and notelines to prevent unintended playback and preserve engraving integrity; and a feature to support a customizable invisible color in the engraving configuration for improved visual customization and dynamic color response. Impact includes reduced risk of accidental audio playback, more reliable engraving rendering, and expanded UI customization options. Technologies/skills demonstrated include engraving subsystem updates, configuration management, and C++/Qt-based tooling.
2 Commits • 1 Features
Aug 1, 2024August 2024 monthly summary for musescore/MuseScore focusing on engraving improvements. Delivered two engraving-related updates: a bug fix to disable the Play toggle for text- and notelines to prevent unintended playback and preserve engraving integrity; and a feature to support a customizable invisible color in the engraving configuration for improved visual customization and dynamic color response. Impact includes reduced risk of accidental audio playback, more reliable engraving rendering, and expanded UI customization options. Technologies/skills demonstrated include engraving subsystem updates, configuration management, and C++/Qt-based tooling.
August 2024
April 2024
1 Commits • 1 Features
Apr 1, 2024April 2024 monthly summary for musescore/MuseScore. Focused on improving cross-staff notation fidelity during input by implementing enhancements to cross-staff tie handling, preserving cross-staff note movement, and adding validation checks to ensure ties are applied correctly across staves. These changes reduce manual corrections and improve the accuracy of score representation. No major bugs fixed this month. Repository: musescore/MuseScore. Technologies demonstrated include Git-based collaboration, algorithmic handling of cross-staff input, and validation/testing processes.
April 2024
1 Commits • 1 Features
Apr 1, 2024April 2024 monthly summary for musescore/MuseScore. Focused on improving cross-staff notation fidelity during input by implementing enhancements to cross-staff tie handling, preserving cross-staff note movement, and adding validation checks to ensure ties are applied correctly across staves. These changes reduce manual corrections and improve the accuracy of score representation. No major bugs fixed this month. Repository: musescore/MuseScore. Technologies demonstrated include Git-based collaboration, algorithmic handling of cross-staff input, and validation/testing processes.
January 2024
1 Commits • 1 Features
Jan 1, 2024January 2024 focused on expanding MuseScore's text rendering capabilities by introducing configurable line styles for text lines. The feature increases authoring flexibility and rendering fidelity while laying groundwork for future style-driven enhancements. No major bug fixes are documented for this period; the work emphasized maintainability and traceability through clean refactoring and clear commit history.
1 Commits • 1 Features
Jan 1, 2024January 2024 focused on expanding MuseScore's text rendering capabilities by introducing configurable line styles for text lines. The feature increases authoring flexibility and rendering fidelity while laying groundwork for future style-driven enhancements. No major bug fixes are documented for this period; the work emphasized maintainability and traceability through clean refactoring and clear commit history.
January 2024
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Quality Metrics
Correctness92.0%
Maintainability88.4%
Architecture86.8%
Performance85.2%
AI Usage21.4%
Skills & Technologies
Programming Languages
C++CMakeHeaderJavaScriptMSCZMSSQMLXML
Technical Skills
API DesignAPI DevelopmentAPI designAPI developmentAccidental HandlingAlgorithm DesignAlgorithm OptimizationBug FixingC++C++ DevelopmentC++ ProgrammingC++ developmentC++ programmingCMakeCode Analysis
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