“Well, he's not going to get any nicer. He's a genocidal racist maniac. He's one of these people who thinks the world was a great place when Voldemort ruled the world. He's particularly offended by mixed-blood Mudbloods, the product of wizards and humans. So I hope he goes into therapy.”

“Even if you're improvising, the fact that beforehand you know certain things will work helps you make those improvisations successful. It really helps to have a certain amount of knowledge about musical structure.”