Pretty darned sweet. There are two things about it that I found odd, but hearing the music on real instruments like that was teh pwnage. It seemed like only the strings were being used (probably intentional, but it seemed like the music didn't have enough layers), and that there were gaps in the music when the strings would stop, and it seemed like some background music should've been playing then. I don't know how many people you've got, though, so it may well be totally unavoidable. Again, great work and keep at it.