LilyPond sheet music text editor
R Package for Music Score and Audio Generation
netabc creates and renders html files with abc music notation
Tool for packing audiobook mp3 files to handy size
Tracked Music Editor
Spatilization tool in in 2D and 3D
User interface to the Verovio JavaScript Toolkit Library
Versatile algorithmic random music generation software written in Java
A unique music composition and improvisation program using grammars
Leadsheet notation with auto-generated playback, improvisation advice
Perform dynamic tunings for realtime music.
Text-based chiptune creator
A music score editor
Synthesizer, mixing, sound effects, music composition and production.
Cross-platform C++ library to handle music from code
A tool for automated downmixing of live multitrack sound recordings
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]
Open-Source Braille Music Notation Software