Now?
Old Crow Medicine Show's version of "Wagonwheel." Of course, I just got back from going to a wedding in south carolina (not mine, mind you)-"If I die in Raleigh, at least I will die free."
And it evokes my love of the south, such as it is, in a way kinda parallel to Faulkner (but less intellectually, more viscerally).
Depends on my mood, though. Sometimes it might be Bach or Palestrina.