Research shows that babies recognize music after birth which was played before their birth outside the womb. In addition, babies in some intensive care units are played rock music to calm them because the drum beat is like a mother's heartbeat. Using this knowledge and my raw nerves yesterday evening due to a certain crying baby at my house, we rocked to some AC/DC yesterday evening. Sure enough, after hearing "Big Balls", "Girl's Got Rhythm (Backseat Rhythm)", and "Whole Lotta Rosie" and dancing along to it, baby Willy was out like a light. I don't know if I could sleep to AC/DC, but it did the trick for Willy. At the moment, true to his Michigan roots, he's listening to the Raconteurs, and it seems to be quite pleasing even to a wakeful Willy. But of course he's predisposed to Jack White's music, he was at a White Stripes concert back in October when he was probably only about the size of a walnut or so.