AMPLI.FI - Live online music community. Twitch for tunes.
Soundscape - Sync your music with the open source community
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Twitch Creative - Watch artists create. Twitch expands into the arts.
Blattarco - Creative self-developement for musicians of all level.
Creatr - Creatr is a global livestreaming platform for creators and artists.