Open Source Record Label

Magnatune -- "It's a record label, but it's not evil."

I especially like the licensing area, and it's use of Creative Commons licensing

All our music is available under the "Attribution-NonCommercial-ShareAlike " license from Creative Commons to promote these goals. Specifically, this means:

You can listen to our Internet radio stations, download our free music, and share with anyone you like.

Derivative works (for example: remixes, cover songs, sampling) is explicitly allowed. Many of our artists publish the "source code" to their music so you can rework and improve it. This includes scores, lyrics, MIDI files, samples and track-by-track audio files. If you make a great new version of our music, we'd love to know so that we can promote it!

Non-commercial use of our music and its "source code" is free. However, if you make money ("commercial use") with our music, you'll have to "share the wealth" and give us and our artists a share.