Swelling Melodies (German: Rauschende Melodien) is a 1955 East German musical film directed by E.W. Fiedler and starring Erich Arnold, Jarmila Ksírová and Sonja Schöner. It is an adaptation of the operetta Die Fledermaus by Johann Strauss II and Richard Genée and was part of a tradition of operetta films in German cinema.. It was released in 1955, and sold 4,968,582 tickets.It was made by the state-backed DEFA studios. The film's sets were designed by Artur Günther.