I wouldn't mind a look at your record collection!
Peter Gabriel, Jethro Tull and Fairport Convention have loads of tracks that just seem to fit somehow. I wonder was it a sign of those times?
Here's a few more I've thought of:
Arwen's farewell to Aragorn and retirement to Cerin Amroth:
Kate Rusby - Underneath The Stars
http://uk.youtube.com/watch?v=0wajspUPiQ8
Frodo & Bilbo leaving Middle-earth and Sam returning home:
Fairport Convention - Who Knows Where The Time Goes
http://uk.youtube.com/watch?v=n2xODjbfYw8
The scene where you forst see Mim the Petty-dwarf, running away:
Aphex Twin - Funny Little Man
No link cause I can't find one without the sweary bit at the end
In Tom Bombadil's house:
Vashti Bunyan - Lily Pond
http://uk.youtube.com/watch?v=uxTUQXk7PLY