Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Jammcard - The private network for music professionals
Kompoz - Kompoz is an online platform for crowd-sourcing music creation, making you record, create or publish music with the guidelines of a world-class musical expert.
Synk.io - Source music directly from professional producers worldwide
Encore Music - An open source, extendable music player for Android.
Hendrix - LinkedIn for Musicians 🎶