Listen to Cello Concerto in B-Flat Major : III. Rondo, Allegro online. Cello Concerto in B-Flat Major : III. Rondo, Allegro is an English language song and is sung by Saint Petersburg Chamber Orchestra, Sergei Raldugin and Leo Korchin. Cello Concerto in B-Flat Major : III. Rondo, Allegro, from the album 88 Holiday Classical Christmas: A Christmas Fantasy, was released in the year 2012. The duration of the song is 6:00. Download English songs online from JioSaavn.