This actually makes a lot of sense, I think. I read an article a few years ago about people who had strokes that affected the language part of their brain. As a result of the stroke, not only was it hard for them to understand what other people said to them, they could no longer perceive music. Instead, they heard it as just a jumble of random notes. They could not hear the patterns and they could not perceive melody. This means that a great deal of music perception goes on in the language part of the brain. I even argue that our human love of music is an emergent property from the brain being wired to use language so much.
Also there are already many articles about how much musical training (when the student is really committed) can help children in the long run, not just in regards to their brains, but in regards to their discipline in doing other tasks.
The article is interesting. It was pointed out to me many years ago that musicians can hear language differences more than non-musicians. My friend predicted that I would easily be able to repeat accurately Slavic phrases which he considered difficult for a native English speaker, and, I did. Plenty of other experience confirms this. Also, musicians invariably scored high on the Army's CW test.
On the other side, I have known some good musicians who were top notch dunderheads, and one pianist who is dyslexic.