audio sequencer
Versatile algorithmic random music generation software written in Java
Free music notation & composition software
Internet radio broadcast console / darkice frontend
Scrolling notes in any key for any instrument
Midi file create, save and play.
Python to BASS sound
A free karaoke player for Linux and BSD
Give the chord progression and a style and jchordbox generates a song.
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]
make connections and start JACK server from command-line
Speedy Composer – Artificial Neural Network Melody Composer.