Ein feste Burg ist unser Gott, BWV 80
Chorale cantata by Johann Sebastian Bach
Ein feste Burg ist unser Gott, BWV 80, is a chorale cantata for Reformation Day by Johann Sebastian Bach. He reworked it from one of his Weimar cantatas, Alles, was von Gott geboren, BWV 80a. Wikipedia
Chorale: "Ein feste Burg ist unser Gott"; by Martin Luther
Composer: Johann Sebastian Bach
Composed: 1730
Cantata text: Salomon Franck
Movements: eight