SoundBetter - Marketplace for musicians and music production professionals
BeatStyle - A mobile recording studio!
PrimoMusic - An iTunes alternative made to manage iPhone/iPod media files
VOXISO - Online AI-powered vocal and music remover
Gemtracks - Buy instrumental backing tracks and beats for $149! Get master ownership and copyright transferred to you once purchased.
Groovebox: Beat & Synth Studio - Make Music & Play Instruments