Leonard Stein

Leonard David Stein (December 1, 1916 – June 23, 2004) was an American musicologist, pianist, conductor and university teacher. He was influential in promoting contemporary music on the American West Coast. He was for years Arnold Schoenberg's assistant, music director of the Schoenberg Institute at USC, and among the foremost authorities on Schoenberg's music. He was also an influential teacher in the lives of many younger composers, such as the influential minimalist La Monte Young. Provided by Wikipedia