Listen to Brandenburg Concerto No. 6 in B Flat Major BWV 1051: I. Allegro online. Brandenburg Concerto No. 6 in B Flat Major BWV 1051: I. Allegro is an English language song and is sung by Yehudi Menuhin. Brandenburg Concerto No. 6 in B Flat Major BWV 1051: I. Allegro, from the album Classical Moods Vol. 3, was released in the year 2013. The duration of the song is 7:15. Download English songs online from JioSaavn.