Listen to Piano Sonata No. 11 in A Major, K. 331: III. Alla turca. Allegretto online. Piano Sonata No. 11 in A Major, K. 331: III. Alla turca. Allegretto is an English language song and is sung by Virginia Black. Piano Sonata No. 11 in A Major, K. 331: III. Alla turca. Allegretto, from the album Classical Music You've Heard on Tv, was released in the year 2014. The duration of the song is 3:24. Download English songs online from JioSaavn.