Audulus - A universe of sound at your fingertips - Audulus is a modular music processing app
keezy - A colorful soundboard. Play with music.
Blocs Wave - A free audio app for creating music loops.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
FL Studio Mobile - Create & save multi-track music projects on a smartphone
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.