This Is Your Brain on Music: The Science of a Human Obsession
by Daniel J. Levitin (2007)
http://www.amazon.com/This-Your-Brain-Music-Obsession/dp/0452288525
Musicophilia: Tales of Music and the Brain (Revised and Expanded Edition)
by Oliver Sacks (2008)
http://www.amazon.com/Musicophilia-Tales-Revised-Expanded-Edition/dp/1400033535