OJ 9/34, [16] Handwritten letter from Cube to Schenker, dated March 26, 1929

Cube is listening by radio to music being performed in Vienna. The two caricatures are his fellow composition teachers at Duisburg. Reports on his work at Cologne Conservatory: success with previous lectures, and forthcoming lecture series.

OJ 9/34, [22] Handwritten letter from Cube to Schenker, dated November 22, 1930

Cube thinks attending Weisse's lectures would enable him to make contact with "people of stature" in Berlin, where he would like to teach Schenker's theory, and asks Schenker for the time and place, referring to the difficulties of travel in these "catastrophic times." Will check up on Reichert. Has been invited to give six lectures locally, and has a concert of his compositions coming up.