Sometimes, if a song is written, in essence, to be that stripped down, it's very touchy when you start adding things, because even the smallest thing can have a huge impact. Somebody has to make the decision that there's a better song in there if there's less.

Any way that you can get the end result is valid, whatever it takes.

I'm pretty critical, but I'm also pretty good at letting go once it's done. There's this existential argument that comes in, at some point, when you're over-thinking the songwriting process. There's no guarantee that the more time you spend or the more you concentrate on certain aspects that that's going to produce a better result, especially in the arts. Some of the most brilliant things that someone might do could happen in three minutes because it's something that just occurs to them.

I started as a drummer, so I sort of took on singing duties by default. I had sung backgrounds and some lead vocals from behind the drums in different bands that I'd been in, and I'd gotten great responses for the songs I would sing. I really started pursuing the possibility of being a lead singer based on the fact that I was working a full-time restaurant job and then playing gigs at night, hauling drums around. One day, it just dawned on me that, 'Hey, I could be in a band and be the singer, and it would be a lot easier!'

My brother brought home 'At San Quentin' when I was about 7, and we played it over and over again.

When you're having a conversation with someone who, despite his brilliant medical career, says he's going to produce the film, you think, "How's he gonna do this? Is he insane, or is he really going to pull this off? It might be both." It's really amazing to see someone do what he's done.

If you are trying to think ahead musically, it is not going to help you. It is better to ignore what is happening melodically and just look at the little dots coming at you and the corresponding colors and try to do it at the right time.