Chord
Stand-alone MIDI tool with circle of fifths interface made in python mode, Processing. It is for Mac OSX.
Chord uses a musically logical digramatic interface to help the user understand the patterns and shapes involved with harmony and chords in western music.
This stand-alone tool can send MIDI messages to DAWs like Logic and Ableton Live, to write MIDI directly. This works around the restriction that MIDI AU and VST plug-ins have of not being able to write MIDI to the session in real time.
Download here: https://www.dropbox.com/s/9zfj8dkrkkgvd0k/Chord.dmg?dl=0
Video explaining the project here: https://www.youtube.com/watch?v=XqzMBZ68jiY