Note 158 — REGISTRATION AND ORNAMENTS OF BACH’S ORGAN WORKS

Sechs Choräle von verschiedener Art auf einer Orgel mit 2 Clavieren und Pedal vorzuspielen, verfertiget von Johann Sebastian Bach, königl. Pohln. und Churf. Sächs. Hoff-Compositeur, Capellm. und Direct. Chor. Mus. Lips. In Verlegung Joh. Georg Schüblers zu Zella am Thüringer Wald.

These chorales are taken from the cantatas composed at Leipzig. They are, however, only transcriptions; it is interesting in registrating them to know their orchestration. In the chorale Ach bleib' bei uns! (B.-G. xxv, P. vi, 2) the melody is sung by the soprano, accompanied by a violoncello piccolo, the continuo sustaining the harmony. In Meine Seele erhebt den Herrn (Magnificat, P. vii, 42), the continuo is played by the pedal, the parts entrusted to the left hand corresponding to the duet between tenor and alto, while the chorale (dextra forte) is executed in the score by the first and second oboes and the trumpet.