One of the best IMO is Enya's "To Go Beyond" from "The Celts" CD. Her mellow, soothing voice singing doo-doo-doo's, no words, is just perfect for coming down with a babe.
But MY son....well, he likes a LOT of bizarre things, from my wifes 60's/70's music (Signs, To Sir With Love, Abba, etc.), to my weird taste: Nick Cave, The Chameleons, Eminem, more.
And he just turned 4 ! :-)
