ODJO - DJ music mixer. play, mix, record & share
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
BeDJ - Marketplace of detailed mixing instructions to DJ sets
cassini - Polyphonic Synthesizer for iPhone/iPod touch
Playlistify - Make Spotify playlists from 1001tracklists & setlist.fm sets
zMors Modular - Full featured modular synthesizer for iOS