I don't think there is much American music.
When I dealt with set theory, I could never make it be the music that I wanted.
You either are or you're not.
I think there are influences that you open the door to, and influences that come under the door.
I don't have ideas so much as there are things which constantly evolve... there are various threads or layers, if you like, which change.
The theatre only knows what it's doing next week, not like the opera, where they say: 'What are we going to do in five years' time?' A completely different attitude.