This Milhaud ballet, in English: The Ox on the Roof: The Nothing-Doing Bar, is a surrealist master piece which had a profound effect on Brazilian music. The music was originally intended to be used as a score for a Charlie Chaplin film. This film illustrates the different uses of various keys to bring warmth and color to performances. The instrumentation is explained as the ballet is performed in major and minor keys. A must watch for any lover of art, dance, and music, this documentary deconstructs the work in an accessible and informative manner.