There's a LOT of music just in that episode. WHICH song?

I think you're referring to the song Wrapped In My Memory by Shawn Smith which is on his latest CD Shield of Thorns.

Here's a site I found for this artist (first hit on a google search after a visit to hbo.com):

http://www.shawnsmith.co.uk

tony b.

"Kid, these are my f**kin' work clothes."
"You look good in them golf shoes. You should buy 'em"