Where can I find information about the developmental benefits of playing music to children?
America’s Doctors, Oz and Roizen, have written a lot about this subject. They say, “We also encourage you to listen to all kinds of music during and after pregnancy. This will help stimulate baby’s senses and improve his brain development. Exposure to different sounds and scenes is essentially what helps establish connections from one set of neurons -- the nerve cells of the brain -- to another. This is how we all learn. These neural structures are shaped like a tree and root system. A baby’s brain is extremely plastic, meaning that it can constantly adapt and make new connections between trees.”
http://www.edact.com/blog/?p=24
We also recommend their book -- "YOU: Having A Baby"