Breaking with their usual pattern, neither Harpo's harp nor Chico's piano is used in the film, although Harpo briefly pretends to play harp on the strings of a piano, strumming chords in accompaniment to a duck-shaped music box that is playing.
The "Freedonia National Anthem" is used frequently throughout the film, both as vocal and instrumental; the entire song seems to consist of "Hail, Hail, Freedonia, land of the brave and free", contrasting with the final line of The Star-Spangled Banner.