Listen to Bach: Prelude and Fugue in D major BWV 850 online. Bach: Prelude and Fugue in D major BWV 850 is an Unknown language song and is sung by Lullaby & Prenatal Band. Bach: Prelude and Fugue in D major BWV 850, from the album Bach Music with Guitar for My Baby Lullaby Ver. 1 (Pregnant Woman,Baby Sleep Music,Pregnancy Music), was released in the year 2017. The duration of the song is 7:48. Download Unknown songs online from JioSaavn.