http://www.dailymotion.com/visited/...ideo/xbpal_simpsons-theme-by-aranjuez-quartet tell me this isn't totally tits....
Nope it isn't - I think its brilliant - I'm a guitar player myself and I can appreciate how hard this must have been to play.
It was supposed to sound like that. Not exactly out of tune but with dissonant harmonics. That's the way that passage in the original synthesized orchestration by Danny Elfman is played. It was perfectly faithful to the original. Remember, the original is full of auto horns and stuff like that.
I am not sure if you will like it, this website is in russian but it lists some great classical music pieces. http://music.lib.ru/janr/index_janr_hits8-1.shtml on the website there are two links next to a selection, choose the second from the left mp3 link.