I have playlists for all of my characters, because I am super inclined to associate music with characters, but I will pick just two for each that I thing really ~sums them up~. I am, however, not linking because I'm posting from work, but here are some... and more are always welcome >.>

Jimmy:
"I Fought In A War" Belle & Sebastian
"Great Expectations" The Gaslight Anthem

Meyer:
"Underdog" Kasabian
"Sinister Kid" The Black Keys

Ginsberg:
"Demons" The National
"Ten Thousand Words" The Avett Brothers