Listen to Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro online. Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro is an Instrumental language song and is sung by Leningrad Chamber Orchestra. Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro, from the album Bach: Brandenburg Concertos, was released in the year 1971. The duration of the song is 6:31. Download Instrumental songs online from JioSaavn.