LilyPond sheet music text editor
Linux MIDI arpeggiator, phrase generator and controller LFO
Tracked Music Editor
An algorithmic music composition system
Leadsheet notation with auto-generated playback, improvisation advice
Perform dynamic tunings for realtime music.
Free music notation & composition software
Networked music collaboration
Text-based Music Programming Tools
Loop based software with jack transport, record and midi controllable
Synthesizer, mixing, sound effects, music composition and production.
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]
Open-Source Braille Music Notation Software