It takes about a year to write an opera for me, but not a really a year of writing. I'm touring at the same time, and I'm playing, sometimes doing smaller projects.[The opera] Akhnaten fits in with Gandhi and Einstein, so that forms a trilogy in a way.I picked people who were these kind of larger than life characters, who kind of changed the world they lived in by almost the force of their personality and their inventiveness. People that I think not only do I admire but I think they're admirable people.

What came to me as a revelation was the use of rhythm in developing an overall structure in music.

What I've noticed is that people who love what they do, regardless of what that might be, tend to live longer.

But the difference between the little pieces and the big pieces - I'm not actually sure which are the little pieces. With some of the big pieces, it's a lot of musical running around, whereas the little pieces, you can say everything you want to say.

The generation of composers that are just preceded me, people like [Karlheinz] Stockhausen, [Pierre] Boulez, and, well, [John] Cage for that matter,[Morton] Feldman ... That was a kind of experimental music that was very isolated. It had no real public.

It doesn't need to be imagined, it needs to be written down.

The hardest thing about traveling is that mostly you get to a point - and it always happens on every tour - where you can choose between eating and sleeping, but you can't do both.