Admittedly not very unsung, but I just can't withhold this broadcast from you; it's the most painful, and therefore funniest thing I've ever experienced in the field of orchestral "playing"... (b.t.w., the playing starts I think at 2:30 or something, after a lengthy introduction) Enjoy!
http://www.youtube.com/watch?v=xzPxObs2NtQ&feature=related