Sustained training in music, dance or other arts strengthens the brain’s attention system, which in turn may improve cognition more generally. Evidence for such cognitive “transfer” is accumulating.
Dr. Michael I. Posner: “Does education in the arts transfer to seemingly unrelated cognitive abilities? Researchers are finding evidence that it does. Michael Posner argues that when children find an art form that sustains their interest, the subsequent strengthening of their brains’ attention networks can improve cognition more broadly.”
http://www.dana.org/news/cerebrum/detail.aspx?id=23206