Nice one, you got a functional chess game out in two days (with AI), and made a couple of tracks of music. That's good going for sure.
Poor white king didn't manage to get himself out of check (don't think that's a legal move - so I think I'm calling that a bug ;))
Only other thing is that one of the tracks (the first one if they're not randomly ordered) is a bit loud and clips a bit. Really liked the music.