Listen to Invention No. 9 in F Minor, BWV 780 online. Invention No. 9 in F Minor, BWV 780 is an English language song and is sung by Glenn Gould. Invention No. 9 in F Minor, BWV 780, from the album Bach: Inventions & Sinfonias, BWV 772-801 & Toccatas BWV 910-916, was released in the year 2015. The duration of the song is 2:48. Download English songs online from JioSaavn.