This short opens with Judy Garland singing| and dancing to| the title song. A short history of movie music is presented| from silentfilms accompanied by a single piano| to the elaborate song scores for musicals (with scenes from MGM's musicals) and background music for dramas. Conductor/composerHerbert Stothart conducts the MGM studio orchestra recording the score for The Chocolate Soldier (1941).Busby Berkeley directs a rehearsal of the "Hoedown" number from Babes on Broadway (1941). The film endswith Risë Stevens singing "America the Beautiful."