In “Steamboat Willie” the sound emphasizes the action by the emotions that we see Mickey Mouse and Minnie Mouse along with all the other characters. They make music with the animals and things around them as they smile. The role that music plays in this film it sets the tone of the moving picture it gives an upbeat sound. It also increased emotions when the music starts both Mickey and Minnie are smiling and enjoying their time. They are in perfect sync with one another when they are making the music.