When I was a kid, I wrote music - from the age of 11 until the age of 18.
When I dealt with set theory, I could never make it be the music that I wanted.
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.
You either are or you're not.
My operas and my theatre works are very formal pieces.
The opera tells the story with all the built-in contradictions and from many different angles.