Previous Image Next Image Chorale No. 1 Chorale-prelude “Ach Gott von Himmel” by Johann Christoph Bach (1642–1703). Spitta MS 1491 | UdK Berlin RH 0093. Chorale-prelude “Ach Gott von Himmel” by Johann Christoph Bach (1642–1703). Spitta MS 1491 | UdK Berlin RH 0093.