Sound-Tracking 

Sound-tracking is the effect that happens when your doing something fun or worth remembering, and you have great music in the background. When you hear that music again it takes you back to where you were having fun. When you do this on purpose your creating a sound track, or the act of Sound-tracking.

On a road trip with a good friend, you pop in a CD with music you both like, and both of you are grooving to the music. Later you hear that CD again and it takes you back to that cool moment in time where you were.

Sound-Tracking by Drewcifer13 August 25, 2005

Soundtracking 

The act of playing your own music over everything else.

Joe was tired of swanky porno music and found that soundtracking it was much better.

Soundtracking by nosmas December 17, 2009

soundtrackin it 

when you listen to an i-pod or mp3 player while doing everyday things, as if to put a soundtrack to your life

Bill: Yo u wanna go play some pool?
Ted: Na man im soundtrackin it ask me in a bit

soundtrackin it by orangevegas December 25, 2007