Didn't catch that. Sounds interesting though. Question is, do people with inherently larger "brain pathways" related to music end up listening to more, or does listening to music a lot strengthen those connections? If it's like everything else, it'll be a bit of both.
Interesting article on musician's brain waves...
In my studies of neuropsychology, I've come across many references to the fact that musician's tend to have musically related brain function lateralized differently than the rest of us. Here's an article (from CNN) about another potential difference.
http://www.cnn.com/2001/HEALTH/11/15/musicians.brains.ap/index.html
http://www.cnn.com/2001/HEALTH/11/15/musicians.brains.ap/index.html