Listen to Two-Part Inventions, No. 7 in E Minor, Bwv 778 online. Two-Part Inventions, No. 7 in E Minor, Bwv 778 is an English language song and is sung by John Moon and The Haunted Players. Two-Part Inventions, No. 7 in E Minor, Bwv 778, from the album Spooky Bach Halloween Volume Three, was released in the year 2009. The duration of the song is 1:40. Download English songs online from JioSaavn.