so i haven't posted in awhile, sorry, but i did add something.
at poking you, we listen to these slacker.com radio stations, which are a perfect mix for hours of tattoo work. we've each made some stations, so there is a good variety. the site has a pretty vast collection of artists, with appropriate recommendations for similar bands (for the most part).
check out the 2 stations i made, IZZY and TACO!. they're on the right side of the blog page, with direct links which open the music right away. it's super easy.