Hello, I run Atomicon, a music and sound design house in Portland, Oregon. We create original music and sound design for games and other media. We also release game soundtracks for sale through online digital outlets (iTunes being the main one, but also through Amazon, Rhapsody, Napster, eMusic, and dozens more). We offer a revenue-sharing agreement with game developers on sales of the music from within the game. We can provide a full soundtrack, and then kick back a royalty to you on every sale of that soundtrack through your game. Or we can release your existing soundtrack for sale and take care of all the royalty accounting for you (paying composers, publishers, and you). Get in touch if you're interested, and check out our site for more info!