Music that brings back emotions, not just memories.
Not sure why, but I've been listening to a bunch of old tunes from my late teens/early 20's for the last few days, and the waves of emotions that I've been going through are huge. Each song has a specific past emotion attached to it, and listening to them all these years later, I can still feel those feelings, even if my life has changed big time. I find that absolutely bananas, and comforting.
Does this happen to you? Which songs affect you this way?