Odd topic. But I've always loved music for it's ability to almost take you back to what you felt when you heard it.
Got any particular moments?
--- Few of mine...
Unlimited SaGa OST: reminds me of when I worked at a chair company in Toronto, it's where I first heard, and listened the fuck out of it. This actually goes for the Zweii II OST (find it, FIND IT, if you can - it's fucking awesome).
The Beautiful Mistake: reminds me of the gym, had a few of their tracks on then, and now it just kinda sticks.
Bigwig, Still (and various other punk/ska): highschool, it was at an all-time highlight then.
Bif Naked, Spaceman: reminds me of the drive to my drama classes back when I was in gradeschool. I loved this song.
Avishai Cohen: little-known jazz musician, reminds me of a boy I liked, who got me into jazz, but also reminds me of Greece, when I went there and had some of Cohen's stuff on my MP3 player.
Kirby Super Star OST: Christmas time. My bro and I played the game like mad when we were getting ready for "santa" to arrive.