It came from topLingo's blog ...

I may have figured out how  Lala works their licensing mystery.  When synching your music collection, the service somehow matches mp3 tags like artist, album, and song title.  I think song length may also have something to do with it.  If it finds an “approximate” match AND the song is licensed for Lala’s use, the [...]

There’s a great music website called Lala which I have been using for about 6 months now.  It allows you to upload your music collection and listen to it anywhere that you have a computer (or iPhone) and an internet connection.  You can set up playlists and share them.  And, of course, you can sort [...]