Listen to III. Rondo: Allegretto online. III. Rondo: Allegretto is a German language song and is sung by Staatskapelle Dresden and Oskar Michallik & Kurt Sanderling. III. Rondo: Allegretto, from the album Weber: Klarinettenkonzerte No. 1 & 2, was released in the year 1968. The duration of the song is 7:30. Download German songs online from JioSaavn.