Newgrounds.com — Everything, By Everyone.

I just came across this thread and it so happens I uploaded some epic classical music a few days ago, you could use it in your game, maybe in the menu or credits or a cut -scene.

http://www.newgrounds.com/audio/listen/4 01235

http://www.newgrounds.com/audio/listen/3 37570
Song I made a while a ago and is so far the best song I have, according to newgrounds votes.

You could always get a half-size electric or acoustic guitar although the the electric would probably be easier and try it I guess.

I was 10 in 2003, woahhhhhhhh double figures alllllllll thhhheeee wayyyyyyyy.