http://www.scientificamerican.com/article/fact-or-fiction-babies-ex/
Fact or Fiction?: Babies Exposed to Classical Music End Up Smarter
Is the so-called “Mozart effect” a scientifically supported, developmental leg up or a media-fueled “scientific legend”?
“I would simply say that there is no compelling evidence that children who listen to classical music are going to have any improvement in cognitive abilities,” adds Rauscher, now an associate professor of psychology at the University of Wisconsin–Oshkosh. “It’s really a myth, in my humble opinion.”
Part of the problem could be that they’re listening through water anyhow. High frequencies would be lost.
Classical music may not be a magic formula to make kids smarter, but I wonder if anyone has compared the effect on cognitive development of infanrs who listen exclusively to classical music vs those who listen to heavy metal or rap.
I have to think that what goes in our brains affects the development.