OK - so there's not one, top of the heap "most achingly beautiful"...many great recommendations as a result. A couple of things I'm listening to lately that seem to qualify for inclusion:
1) 4th of July, Asbury Park (Sandy) from Springsteen's "The Wild the Innocent and....".
2) Fake Plastic Trees from Radiohead's "The Bends"
Apologies if I'm simply duplicating someone else's earlier suggesions.
Ciao.