Keywords: BWV29-sinfonia-organ-obbligato-2.jpg Wir danken dir Gott wir danken dir BWV 29 According to baroque convention of choir pitch Chorton in German the organ was a transposing instrument so that the key of C major in the manuscript corresponded to the orchestral key of D major a major second higher http //www bach-digital de/servlets/MCRFileNodeServlet/BachDigitalSource_derivate_00016267/db_bachst0106_pa064 jpg Bach digital archive Leipzig J S Bach 1731 PD-old-100 Sheet music of Johann Sebastian Bach |