Listen to Sonata for Piano No.17 in F Sharp 'A Therese', Op.78: - Allegro ma non troppo online. Sonata for Piano No.17 in F Sharp 'A Therese', Op.78: - Allegro ma non troppo is an Unknown language song and is sung by Adolf Drescher. Sonata for Piano No.17 in F Sharp 'A Therese', Op.78: - Allegro ma non troppo, from the album Beethoven Piano Sonatas, was released in the year 1996. The duration of the song is 1:06. Download Unknown songs online from JioSaavn.