Here's some great music for late night inking: Julie London. Cry Me A River, I Left My Heart In San Francisco, all the standards. Only problem is you feel you should almost wear a tie and a suit while listening. Also to have a glass of whiskey and a smoldering cigarette in an ashtray. Drinking and inking is not a good combination, though. Don't drink and ink. And a smoldering cigarette next to a lot of artwork is maybe not a good idea either.