There were a lot of things happen in the mid-'80's that all of a sudden made it possible to do a lot of very quick interactive music.

A piano is a machine, but you've got ivory and there's weight behind the keys and you have this really - you feel the resonance in the instrument, you feel the vibration in the pedal. I mean, these a still very crude.

Strangely, the thing I listen to 75% of the time, when I'm exercising with my headphones on is English Tudor/Elizabethan music, so music from about 1450 to the early 1600's.

When I was done with high school, I knew that music was really important to me and I knew I didn't want to be a cellist, but I wasn't really sure if I wanted to be a composer, or think about - I was just interested in the ideas behind music, I was interested in mathematics.

I think part of the bad thing is that skill is emphasized so much that a lot of people, by the time they get to Juilliard, well I think they kind of forget why they got into music in the first place and if they're performers - this is a simplification, but a lot of them are trying to win a competition and play more accurately, or better, or more beautifully, whatever can be measured, than somebody else.

Over my career, I'd say the last 25 years; we've gone from music and computer being for 10 people in the world to having personal computers, to now being able to do amazing things on your iPhone, or with Rock Band. So, right now there's enormous capability with technology in our devices that everybody has access to.

You have to train your mind and your ears, but they're more like athletic skills. So, part of music you just have to learn those things or you can't practice the art.