AMPLI.FI - Live online music community. Twitch for tunes.
Digital Concert Hall - Stream live classical music concerts to your mobile devices
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Twitch Creative - Watch artists create. Twitch expands into the arts.
Spotify - Map shows when two people play same song at same time