An open source and free music notation software
Virtual MIDI controller for Linux, Windows and OSX
A MIDI Remote Controller via UDP/IP Multicast
Specialized sound synthesizer with Byzantine Church music scales
multiplatform, small and handy audio/video player with network remote
DIY MIDI Drum Trigger
Free music notation & composition software
Gives an easy-to-complex way to control videoprojection
Cross-platform C++ library to handle music from code
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]
MIDI and/or Custom WAV Metronome for Windows and Windows Mobile