When the Cat's Away (1929)

Plot

Tom Cat heads out for a hunt, leaving his house empty. Seizing the chance, Mickey, Minnie, and their mouse crew sneak inside and turn the place into a lively concert. Mickey tickles the piano keys while Minnie joins in, and the other mice tap, bang, and clang on pots, pans, and household items, keeping perfect rhythm with the cheerful melodies.