AthTek DigiBand - AthTek DigiBand is a piece of automatic music composition software for Windows.
GNU Solfege - GNU Solfege is free music education software.
Automated Composing System - ACS creates automated arrangements so you can compose music without musical knowledge.
EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
Captain Chords - Write chord progressions in your favorite DAW
Meludia - Listening exercises and to sharpen your ear and music theory skills