D-Gb, Johann-Sebastian-Bach-Institut, Göttingen
Scholz collection
Fragment of a copy of the ricercar à 3 from the "Musical Offering", BWV 1079/1, and arrangement of the "grave"-part of the sinfonia in C minor (from the "Clavier-Übung"I), BWV 826/1
(the second part is in D LEb Rara II, 223, fascicle 20)