No. 12 F Minor Fugue (Vol. 1 BMV857) No. 12 F Minor Fugue (Vol. 2 BWV 881) No. 12 F Minor Prelude (Vol. 1 BMV857) No. 12 F Minor Prelude (Vol. 2 BWV 881) No. 12 F-dur/ In B flat major No. 12 f-moll BWV 857: Fuge No. 12 f-moll BWV 857: Praeludium No. 12 Final No. 12 Finale: Zdes'? No. 12 Fossils No. 12 from Twenty-Four Preludes and Fugues, Op. 87: I. Prelude No. 12 from Twenty-Four Preludes and Fugues, Op. 87: II. Fugue