The piece that had a large influence on me was Turangalila.
Music is such a problem in the time it takes.
My attitude to writing is like when you do wallpapering, you remember where all the little bits are that don't meet. And then your friends say: It's terrific!
When I dealt with set theory, I could never make it be the music that I wanted.
My operas and my theatre works are very formal pieces.
In the end it doesn't matter what you do.