I can't think of many. There's a Bela Fleck piece called "UFO Tofu" where he tries to do some musical palindrones

Here I was all set to congratulate you for being the first person to use the really interesting word "palindrome" (BTW, it's spelled with an "m" not an "n") on the bbs, but somebody beat you to it (and spelled it right!) more than three years ago!

Oh, well, better luck next time!

tanstaafl.