Company Nikolozi Pty Ltd created these great apps:
Lyrics View, Easy MIDI - Turn your Mac keyboard & mouse into a MIDI Controller, Easy MIDI Free – Turn your Mac keyboard into a MIDI Controller, MIDI Sketch, NS1 – Virtual Analog Synth Audio Unit, NFM – AUv3: FM Synth, Lyrics View 3, NPD, Mela – Synth & FX, and others..
