The movie The Green Book rocked my world when I learned it was about the musician Don Shirley. I saw him perform in San Jose, California at the San Jose Civic Auditorium downtown in the early 70s. As a piano aficionado I had heard about his studying in Russia and while I enjoyed his Duke Ellington style playing in his trio, what I really liked was his playing of the Russian composers especially Rachmaninoff. To this day I remember the thrill of listening to him playing classical music. I never saw Horowitz perform but I feel I got close when experiencing Russian trained Don Shirley play classical music.