BWV Anh.

Title page of the 1805 edition of the Kyrie–Gloria Mass for double choir, BWV Anh. 167 – at that moment attributed to Johann Sebastian Bach.[1]

The BWV Anh. (German: Bach-Werke-Verzeichnis Anhang; lit.'Bach works catalogue annex'), is a list of lost, doubtful, and spurious compositions by, or once attributed to, Johann Sebastian Bach.