“The musician is constantly adjusting decisions on tempo, tone, style, rhythm, phrasing, and feeling--training the brain to become incredibly good at organizing and conducting numerous activities at once. Dedicated practice of this orchestration can have a great payoff for lifelong attention skills, intelligence, and an ability for self-knowledge and expression." (Ratey John J., MD. A User's Guide to the Brain. New York : Pantheon Books, 2001.) B&A