VELCOA - Music industry work management software for artists and professionals.
Spotify - Map shows when two people play same song at same time
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
SoundCloud - Enjoy music & follow favourite artists
ReverbNation - ReverbNation provides over 2.
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm