what do you do when you listen to music?

unfortunately when I work out... i'm exposed to the torturous refrains of Puddle of Mudd, Godsmack and Staind... damn modern rock radio

when I run... I usually listen to one of my absolute favorites... can't be just a good album... it's really gotta get me motivated

I pretty much try to listen to music as much as possible... i think my ears have grown around my headphones... it's a symbiotic relationship
 
studying and reading - progressive rock/metal and instrumental music
trying to get myself motivated - heavier metal, any of my favorite albums
relaxation - progressive rock, melancholic rock, doom metal (I think it's best listened to while in a meditative state)
while on the computer - anything that's available