Mostly soundtracks from Spotify.
If I know what I want to do and I know how to do it, I listen to more upbeat things like Modern Warfare 2 & 3 or some Marvel movies' OSTs.
When I'm trying to figure out what do I really want to achieve with some functionality or mechanics it's Mass Effect 1 & 2 or anything by Austin Wintory (Journey, Banner Saga, Horn).
And when I'm making vector graphics I switch on Netflix and have some Stargate SG-1 in the background.