Listen to Six 2-Part Inventions - Invention No4 in D Minor, BWV 775 online. Six 2-Part Inventions - Invention No4 in D Minor, BWV 775 is an English language song and is sung by Benjamin Pierce. Six 2-Part Inventions - Invention No4 in D Minor, BWV 775, from the album Pierce Plays Bach, was released in the year 2009. The duration of the song is 0:56. Download English songs online from JioSaavn.