Kotaku's weekly "Tell Us Dammit" asks the question -- which is your favorite game music?
My favorite game music was from the days of the sega megadrive -- the arcade platform adventure "Gods" had the best beat score. I remember just going to the option screen and doing the sound test over and over so I can listen to it.
I still hum it in my head sometimes.
Here's a video on Youtube by facepunch0 playing this game.