Stone Rage actually has a really comprehensive sound track already with a lot of songs. We've had them for ages, and they're custom to Stone Rage so there aren't any licensing issues. They're also REALLY good. Trust me on this one. We kinda lucked out getting such good music, but we have it in abundance. In fact, our entire audio selection in general is crazy strong both in music and game SFX. It's one area of the game that is just impeccable. I'm pretty picky myself so finding such good music for a game was a huge surprise.