I have playlists for all my characters so that I can spend the drive getting a) pumped and b) into their weird little heads.
If I had to pick one song for either -
Abbath: "Exterminate, Annihilate, Destroy" by Rotersand. A song about just kind of needing to give your allegiance to, well, anyone to do the kill-things thing? Yup.
V: "Paul Robeson" by the World/Inferno Friendship Society. A person who sacrificed literally everything in the name of helping their people and wound up really mean for it? Lots of talk about wine? Yup.