List of Free code MIDI
Receive and Send MIDI note messages from IOS devices Sample Code.
A demo Core Animation application that visualizes MIDI files.
MIDI library created by Andrew Madsen to simplify MIDI development on Mac OS X.
PGMidi iOS MIDI library and example code.
objective c MIDI framework for os x.
Frameworks for working with OSC and MIDI in OS X and iOS. Not a branch or a dup this is the official trunk.