There is no earthly reason why a solo string instrument or voice, having the possibility to play or sing pure intonation, should want, or try, to be tempered.
“There's like a special group of people that come from different parts of the planet to study with me. It's nice. I just gave a workshop in Boston at the New England Conservatory, which was really nice.”
“Let's say a Soviet exchange student back in the '70s would go back and tell the KGB about people and places and things that he'd seen and done and been involved with. This is not really espionage; there's no betrayal of trust.”