perhaps this is what we need for nap/bedtime. they also have other bands: metallica, radiohead, led zepplin, the beatles and most of them are available on rhapsody. i already know that sammy enjoys the beatles, no lullaby versions needed. he and i were rocking out to them while i made dinner the other night. of course, he seems to enjoy most of the music on my mp3 player, especially when we bounce his chair to the beat and sing along.