DS loves Choo Choo, too! I have a CD by Taj Majal, Shake Sugaree, that he really likes too. Jerry Garcia and David Grismans Not for Kids Only is fun. He also loves Jesse Cooks CD Gravity, it's instrumental latin guitar that has some great dancing tunes on it. Santana.
We just started a Kindermusik class and he begs me to play the CD, Fiddle Dee Dee, over and over again. Not much of a CD for adults, but he LOVES it!