Magnatune are a record label; they offer their catalogue for download on their website. They also stream the entire catalogue so that you really can try before you buy. Then, if you like what you hear, you can buy the albums for pretty much what you think they’re worth (minimum price $5). You can choose between downloading a copy in a format of your choice or buying a CD. The music is licensed under the terms of a Creative Commons Attribution-NonCommercial-ShareAlike license which enables you to share the music with your firends or to make non-commercial derivative works. The artists get 50% of the cash, and they get to retain copyright.
They’ve got a comprehensive information page, so if you’re a producer or an artist or just a music lover, take a look. I’ve only been looking around the site for the last hour or so and I’ve already found some good music, stuff that I’d be happy spending a few quid on. I’ll listen a bit more and then I might just do that.