Imeem
 

imeem is a social network where millions of fans and artists discover new music, videos, and photos, and share their tastes with friends.  Membership is free.  Profits from online advertising is shared with copyright owners.

Most music can be listened to by anyone.

By agreement with copyright owners, some music requires registration/login and some, beyond a 30-second clip, can only be heard by the person who has uploaded the music.

Registration is simple, requiring only a user name (most are very imaginative), a valid email address, password, gender and date of birth.