Listen to Sonata No. 15 in D Major, Op. 28 "Pastoral": IV. Rondo. Allegro ma non troppo online. Sonata No. 15 in D Major, Op. 28 "Pastoral": IV. Rondo. Allegro ma non troppo is an English language song and is sung by Bernard Roberts. Sonata No. 15 in D Major, Op. 28 "Pastoral": IV. Rondo. Allegro ma non troppo, from the album Beethoven: Complete Piano Sonatas, was released in the year 2015. The duration of the song is 5:08. Download English songs online from JioSaavn.