Listen to Concerto for Three Pianos in C Major, BWV 1064: III. Allegro assai online. Concerto for Three Pianos in C Major, BWV 1064: III. Allegro assai is an Instrumental language song and is sung by Edwin Fischer/Ronald Smith/Denis Matthews/Philharmonia Orchestra. Concerto for Three Pianos in C Major, BWV 1064: III. Allegro assai, from the album Icon: Edwin Fischer, was released in the year 2010. The duration of the song is 4:51. Download Instrumental songs online from JioSaavn.