Listen to Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non troppo online. Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non troppo is an English language song and is sung by Wurttemberg Chamber Orchestra Heilbronn. Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non troppo, from the album Bach: For Relaxation and Meditation, was released in the year 2009. The duration of the song is 5:43. Download English songs online from JioSaavn.