When I'm really trying to get shit done I'll put on some German industrial music like Bagger 258. The lyrics don't bother me because I don't understand them. I find the harsh aesthetic helps to keep me from getting distracted with side quests. Those little voices in my head become inaudible over the nonsensical (to me) lyrics.
I like listening to hard rock, EBM and industrial when working. Something with a lot of energy. The lyrics don't bother me at all, I am good at not listening to them, especially if I know the song and what the lyrics are.