When I was confronted with ...

When I was confronted with official tuition, the academic thing, I could see no relationship whatever between that and the music I'd been writing since I was 11.
 Harrison Birtwistle

Quotes from the same author

Minimalism now is a reaction to what came before. It's absolutely of its time. Music moved into the set theory thing, and moved out of it.
 Harrison Birtwistle