oliver sacks' musicophilia is worth reading for chapter 15 especially, which is on clive wearing and his anterograde amnesia. i'd like to see the doc made on wearing, sounds fascinating.

what a peculiar life sacks has, bouncing around and attempting to understand the most interesting folks.

a more technical look at the way the brain deals with music is daniel levitin's this is your brain on music. sometimes his attempts at humour fall flat and his personal narratives go on too long (beyond the point where they entirely relate to the story at hand and end up feeling like they belong in an autobio), but his ability to synthesize (har har) fairly technical information (to a neophyte like myself) and convey it so that you feel amazed and educated all at once is admirable. well worth a read if you, say, like music.