SoundBetter - Marketplace for musicians and music production professionals
Concourse - Pipeline-based CI system written in Go
RecordGram - A studio and production marketplace in the palm of your hand
Playphrase.me - type something, find clips from film and tv of people saying it!
Gemtracks - Buy instrumental backing tracks and beats for $149! Get master ownership and copyright transferred to you once purchased.
Melobytes - Turn any text into song