"Music must be seen, and dance must be heard."

It's the birthday of choreographer and dancer George Balanchine, born Georgi Balanchivadze, in St. Petersburg, Russia (1904).His father was a composer who studied under Rimsky-Korsakov, so Balanchine knew music well by the time he took up dance.He studied at the Maryinsky Theater's ballet school and at age 20 joined Sergei Diaghilev's Ballets Russes in Paris.In 1933 he moved to New York, where in the next few decades, he helped to found the American Ballet Company, and the New York City Ballet. Balanchine's motto was "Music must be seen, and dance must be heard."