Sometimes it's filled with a cacophony of sounds that makes it difficult for babies to distinguish a single sound from all the surrounding noise. That's because babies are generalists and hear all frequencies simultaneously.
Wow. But, does this mean that they really prefer Mozart? I know some babies that already like Britney Spears. Mommy only wants to play Salsa. Anyway, should I change the way I speak to my wife's tummy hoping the baby will learn to say "daddy" before anything else?