Can't do my whole soundtrack (too long!) - but here's some of the importants -

REM - Everybody Hurts
Coldplay - The Scientist
Martin Simpson - Hard Love
Tony Rose - Lakes of Shilin
Simon and Garfunkel - Mrs Robsinson
The Proclaimers - I'm on my way
Rufus Wainwright's version of Hallelujah (the saddest line ever - 'I saw your flag on the marble arch, and love is not a victory march, it's a cold and it's a broken hallelujah')
Blue Murder - no one stands alone
Eric Clapton - Tears in Heaven
Eric Clapton - Layla
Coldplay - Rush of Blood to the head
Phantom Planet - California
Red Hot Chili Peppers - Californication
Don McLean - Vincent
DOn McLean - American Pie

I'd better stop now or I'll end up putting them all in and using far too much space!

xLx