musescore/MuseScore
Nov 2024 – Oct 2025
12 Months active
Languages Used
C++JavaScriptQMLCMakeBashShellMarkdownBatch
Technical Skills
C++ConcurrencyDependency InjectionFront-end DevelopmentQML DevelopmentUI Development
Igor
PROFILE
Igor
Igor Korsukov led core engineering efforts on the musescore/MuseScore repository, architecting a modern audio subsystem and advancing cross-platform web and desktop capabilities. He migrated audio processing to worker threads and introduced a robust RPC framework, improving performance and reliability for real-time playback. Using C++ and QML, Igor refactored UI actions, streamlined build automation with CMake, and enabled asynchronous workflows for both audio and user interface components. His work included integrating WebAssembly for browser-based features, enhancing automated testing, and centralizing resource management. These contributions delivered a scalable, maintainable codebase that supports rapid feature delivery and stable, responsive user experiences.
Overall Statistics
Feature vs Bugs
66%Features
Repository Contributions
272Total
Bugs
48
Commits
272
Features
93
Lines of code
65,710
Activity Months12
Work History
October 2025
30 Commits • 11 Features
Oct 1, 2025During October 2025, the MuseScore project advanced core audio architecture and UI reliability, delivering a more responsive audio experience and broader platform support. Key features include moving the audio engine to the driver thread with centralized RPC callbacks and exec operation support, implementing a Wasapi audio driver, and a comprehensive UI actions/shortcuts overhaul to improve customization and consistency. The RPC and audio queue upgrades establish a robust, lower-latency streaming path with new queues and an audio RPC channel. An audio work mode option was added to give users more control over processing, complemented by a ticker subsystem and Autobot test to improve stability and test coverage. We also tackled critical bugs: fixed Note::styleChanged, corrected isShortcutContextAllowed for disabled shortcuts, resolved notation page double initialization, and addressed audio signal reception issues. These changes collectively improve reliability, performance, and developer efficiency, enabling smoother audio processing, easier user customization, and a stronger foundation for future features.
30 Commits • 11 Features
Oct 1, 2025During October 2025, the MuseScore project advanced core audio architecture and UI reliability, delivering a more responsive audio experience and broader platform support. Key features include moving the audio engine to the driver thread with centralized RPC callbacks and exec operation support, implementing a Wasapi audio driver, and a comprehensive UI actions/shortcuts overhaul to improve customization and consistency. The RPC and audio queue upgrades establish a robust, lower-latency streaming path with new queues and an audio RPC channel. An audio work mode option was added to give users more control over processing, complemented by a ticker subsystem and Autobot test to improve stability and test coverage. We also tackled critical bugs: fixed Note::styleChanged, corrected isShortcutContextAllowed for disabled shortcuts, resolved notation page double initialization, and addressed audio signal reception issues. These changes collectively improve reliability, performance, and developer efficiency, enabling smoother audio processing, easier user customization, and a stronger foundation for future features.
October 2025
September 2025
39 Commits • 12 Features
Sep 1, 2025September 2025 performance summary for musescore/MuseScore focused on delivering a robust web audio path, modernizing the audio stack, and improving stability and UX for web playback and configuration. Significant architectural and feature work laid groundwork for faster feature delivery and easier maintenance across the web footprint.
September 2025
39 Commits • 12 Features
Sep 1, 2025September 2025 performance summary for musescore/MuseScore focused on delivering a robust web audio path, modernizing the audio stack, and improving stability and UX for web playback and configuration. Significant architectural and feature work laid groundwork for faster feature delivery and easier maintenance across the web footprint.
August 2025
46 Commits • 12 Features
Aug 1, 2025August 2025 — MuseScore (musescore/MuseScore): Implemented foundational audio architecture shifts and stability improvements that deliver faster, more reliable audio processing and cross‑platform readiness. Key work includes moving audio processing to worker threads, establishing Audio Worker infrastructure, expanding RPC/serialization for audio, and enhancing font management, with targeted Windows CI and packaging fixes.
46 Commits • 12 Features
Aug 1, 2025August 2025 — MuseScore (musescore/MuseScore): Implemented foundational audio architecture shifts and stability improvements that deliver faster, more reliable audio processing and cross‑platform readiness. Key work includes moving audio processing to worker threads, establishing Audio Worker infrastructure, expanding RPC/serialization for audio, and enhancing font management, with targeted Windows CI and packaging fixes.
August 2025
July 2025
51 Commits • 17 Features
Jul 1, 2025Concise monthly summary for 2025-07 for musescore/MuseScore focusing on business value and technical achievements. The month featured a blend of feature delivery, major refactors, and stability fixes that collectively improve navigation, audio performance, and build reliability, while enabling a scalable, multi-threaded architecture for future growth.
July 2025
51 Commits • 17 Features
Jul 1, 2025Concise monthly summary for 2025-07 for musescore/MuseScore focusing on business value and technical achievements. The month featured a blend of feature delivery, major refactors, and stability fixes that collectively improve navigation, audio performance, and build reliability, while enabling a scalable, multi-threaded architecture for future growth.
June 2025
27 Commits • 13 Features
Jun 1, 2025June 2025 — MuseScore (musescore/MuseScore). Focused on stabilizing the CI, expanding web capabilities, and refining UI/resource management to accelerate delivery and improve cross-platform reliability.
27 Commits • 13 Features
Jun 1, 2025June 2025 — MuseScore (musescore/MuseScore). Focused on stabilizing the CI, expanding web capabilities, and refining UI/resource management to accelerate delivery and improve cross-platform reliability.
June 2025
May 2025
40 Commits • 13 Features
May 1, 2025May 2025 performance summary for musescore/MuseScore: focused on delivering web-ready capabilities, stabilizing cross-platform builds, and improving interactive UX. Key architecture work included WebAssembly sandbox integration, web bridge adjustments, and robust Qt compatibility across 6.2/6.9 with CI flags. The team also advanced the Reanimated Score Builder, enabling quick score creation with random instrumentation and templates, plus template-driven score assembly. Enhancements to interactive dialogs and provider async APIs improved responsiveness and reliability in user-facing flows. An in-memory file system and app scaffolding (appshell, config helper) strengthened offline and deployment readiness. These efforts collectively enable a broader audience reach, faster iteration for composers, and stronger platform reliability.
May 2025
40 Commits • 13 Features
May 1, 2025May 2025 performance summary for musescore/MuseScore: focused on delivering web-ready capabilities, stabilizing cross-platform builds, and improving interactive UX. Key architecture work included WebAssembly sandbox integration, web bridge adjustments, and robust Qt compatibility across 6.2/6.9 with CI flags. The team also advanced the Reanimated Score Builder, enabling quick score creation with random instrumentation and templates, plus template-driven score assembly. Enhancements to interactive dialogs and provider async APIs improved responsiveness and reliability in user-facing flows. An in-memory file system and app scaffolding (appshell, config helper) strengthened offline and deployment readiness. These efforts collectively enable a broader audience reach, faster iteration for composers, and stronger platform reliability.
April 2025
6 Commits • 3 Features
Apr 1, 2025April 2025 performance highlights for musescore/MuseScore: Delivered modernization of the CI signing workflow with AWS-based signing, improving security, portability, error handling, and logging, while removing legacy signing assets to reduce maintenance and risk. Enabled an experimental app-web build type via new CMake/Setup configurations and stub modules, facilitating web-based features and extension management. Enhanced automated testing reliability by refactoring Autobot test TC1.1 to use a new instrument and playback functionality, improving robustness, organization, and diagnostics across automated tests. These efforts collectively strengthen security posture, build reliability, and exploration of new web capabilities, enabling faster, safer releases and broader platform experimentation.
6 Commits • 3 Features
Apr 1, 2025April 2025 performance highlights for musescore/MuseScore: Delivered modernization of the CI signing workflow with AWS-based signing, improving security, portability, error handling, and logging, while removing legacy signing assets to reduce maintenance and risk. Enabled an experimental app-web build type via new CMake/Setup configurations and stub modules, facilitating web-based features and extension management. Enhanced automated testing reliability by refactoring Autobot test TC1.1 to use a new instrument and playback functionality, improving robustness, organization, and diagnostics across automated tests. These efforts collectively strengthen security posture, build reliability, and exploration of new web capabilities, enabling faster, safer releases and broader platform experimentation.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for musescore/MuseScore: Delivered module-level documentation enhancements to the Muse Framework by adding Module READMEs that describe each module's purpose and functionality. This improves onboarding, reduces contributor ramp time, and strengthens documentation standards across the repository.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for musescore/MuseScore: Delivered module-level documentation enhancements to the Muse Framework by adding Module READMEs that describe each module's purpose and functionality. This improves onboarding, reduces contributor ramp time, and strengthens documentation standards across the repository.
February 2025
12 Commits • 5 Features
Feb 1, 2025February 2025: Delivered cross-platform VST View enhancements for MuseScore, advanced diagnostics/actions, standardized progress tracking, centralized build/dependency management, and code style modernization. These efforts improved plugin hosting reliability, build/deploy workflows, and overall developer productivity across Windows, macOS, and Linux.
12 Commits • 5 Features
Feb 1, 2025February 2025: Delivered cross-platform VST View enhancements for MuseScore, advanced diagnostics/actions, standardized progress tracking, centralized build/dependency management, and code style modernization. These efforts improved plugin hosting reliability, build/deploy workflows, and overall developer productivity across Windows, macOS, and Linux.
February 2025
January 2025
15 Commits • 4 Features
Jan 1, 2025January 2025 — MuseScore development: delivered user-facing precision input, standardized builds, and strengthened VST integration and tuning UI. Key outcomes include a RealInputField with precision control and a QML data formatter now in the UI Gallery; a unified build with MUSE_COMPILE_ prefixes; a VST architecture overhaul (renamed entities, new VST view in QML, action-based editor flow, lifecycle and dialog improvements, runtime view switching); and UI refresh for tuning and accidentals with a reusable TuningItem, bug fixes, and minor loader URI adjustments. These changes improve data quality entry, build reliability, plugin stability, and overall user experience for composers and developers.
January 2025
15 Commits • 4 Features
Jan 1, 2025January 2025 — MuseScore development: delivered user-facing precision input, standardized builds, and strengthened VST integration and tuning UI. Key outcomes include a RealInputField with precision control and a QML data formatter now in the UI Gallery; a unified build with MUSE_COMPILE_ prefixes; a VST architecture overhaul (renamed entities, new VST view in QML, action-based editor flow, lifecycle and dialog improvements, runtime view switching); and UI refresh for tuning and accidentals with a reusable TuningItem, bug fixes, and minor loader URI adjustments. These changes improve data quality entry, build reliability, plugin stability, and overall user experience for composers and developers.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 performance summary: Implemented ActionQuery-based Action Dispatching for MuseScore's Menu System, introducing ActionQuery type and integrating into AppMenuModel and IActionsDispatcher to enable structured, query-driven dispatch for menu items; extended testing with ActionQuery mocks. Key commits: ea77d349f091ce6630bec794adef597c14587bd8 and 2d9d1b03a53a1167c923cd281f92d36e2bd4262d. This work improves maintainability, testability, and extensibility of the menu architecture, enabling data-driven configurations and faster feature delivery. Technologies/skills demonstrated: C++/Qt, unit testing, mocking, architecture design.
2 Commits • 1 Features
Dec 1, 2024December 2024 performance summary: Implemented ActionQuery-based Action Dispatching for MuseScore's Menu System, introducing ActionQuery type and integrating into AppMenuModel and IActionsDispatcher to enable structured, query-driven dispatch for menu items; extended testing with ActionQuery mocks. Key commits: ea77d349f091ce6630bec794adef597c14587bd8 and 2d9d1b03a53a1167c923cd281f92d36e2bd4262d. This work improves maintainability, testability, and extensibility of the menu architecture, enabling data-driven configurations and faster feature delivery. Technologies/skills demonstrated: C++/Qt, unit testing, mocking, architecture design.
December 2024
November 2024
3 Commits • 1 Features
Nov 1, 2024Month 2024-11 — stability, reliability, and user-experience improvements in MuseScore. Focused on critical bug fixes and UI enhancements to strengthen core editing workflows and plugin usability, delivering measurable improvements in UI reliability and system stability for end users.
November 2024
3 Commits • 1 Features
Nov 1, 2024Month 2024-11 — stability, reliability, and user-experience improvements in MuseScore. Focused on critical bug fixes and UI enhancements to strengthen core editing workflows and plugin usability, delivering measurable improvements in UI reliability and system stability for end users.
Activity
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Quality Metrics
Correctness86.4%
Maintainability86.2%
Architecture84.4%
Performance77.8%
AI Usage20.8%
Skills & Technologies
Programming Languages
BashBatchCC++CMakeHTMLHeaderJSONJavaScriptMarkdown
Technical Skills
API DesignAPI DevelopmentAWSAction DispatchingAction HandlingApplication ConfigurationApplication DevelopmentApplication Lifecycle ManagementAsynchronous ProgrammingAudio DecodingAudio DevelopmentAudio Driver DevelopmentAudio Driver ImplementationAudio Engine DevelopmentAudio Engineering
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