Music plays a huge role in my writing. Each main character, major scenes, even the over-all novel itself has a theme. I listen to this music before sitting down to work on said character/scene and I find I get a better grasp for putting the movie playing in my head into words on the screen.
Right now in "Ice Phoenix" I'm working on Loy, one of the Imperial Princess' Black Dragons (personal bodyguards). A bit more brawn than brain, yet keenly instinctive in a fight, he's the most martial of the Black Dragons, relying solely on using his hands and feet as lethal weapons. Naturally, "Bonecracker" by Shocore is his theme song <3
https://youtu.be/nZHFy3YfagU