I've decided that one of the major responsibilities I have as a new father is introducing the wide world of music to my daughter. I got her an iPod Nano, and now that I have it in my hands, I've been contemplating what music should be essential listening for a very new person. So far I've put some of my favorite albums on it, and have tried to include a decent array of classical, jazz and country/folk music there too, even though those genres aren't an everyday part of my listening habits. Brewerfan, what are your ideas on what a baby should listen to? I'd love general thoughts as well as specific examples. Thanks!