Listen to Sonata for Piano No. 17 in D Minor 'Der Sturm', Op.31 No. 2:III. Allegretto online. Sonata for Piano No. 17 in D Minor 'Der Sturm', Op.31 No. 2:III. Allegretto is an Unknown language song and is sung by Sylvia Capova. Sonata for Piano No. 17 in D Minor 'Der Sturm', Op.31 No. 2:III. Allegretto, from the album Beethoven Piano Sonatas, was released in the year 1996. The duration of the song is 6:06. Download Unknown songs online from JioSaavn.