If you have not signed up yet, check out Spotify - your own collection of music with millions of tracks.
This easy program allows you to share with your friends on your Mac, PC, or Audio connection. Thanks to Spotify and Facebook, you can see and hear what your friends are listening to – just hit play on any music post. You can also share music with a flick of the wrist. Send it straight to your friends, or post tracks on social networks. It’s how music should be.