OJ 71/20, [2] Handwritten copy of a letter from Leo Kestenberg to Hans Weisse, in the hand of Jeanette Schenker, dated August 4, 1930

Pleased that Weisse is intent on promoting Schenker’s theoretical work, Kestenberg invites Weisse to give a lecture at the Central Institute for Music Education and Teaching, and offers his support for Weisse speaking at the Academy for Church and School Music and the Conservatory [Hochschule für Musik] in Charlottenburg.

OJ 15/15, [47] Handwritten postcard from Weisse to Schenker, dated November 9, 1930

Weisse asks Schenker for the address of Reinhard Oppel, who may be able to provide names of people in Berlin whom Weisse could invite to his forthcoming lecture there.

OJ 15/15, [49] Handwritten postcard from Weisse to Schenker, dated November 28, 1930

Weisse is delighted by the chance to rehearse his forthcoming lecture at Schenker's apartment. His Sextet will be performed at the Musikverein in Vienna; he goes through a list of Schenker's circle of adherents who might be invited to his forthcoming lectures at the Central Institute for Music Education and Teaching in Berlin.

OJ 15/15, [50] Handwritten postcard from Weisse to Schenker, dated November 30, 1930

Weisse gives Schenker the address of the Central Institute for Education and Teaching in Berlin, where he is about to deliver lectures on his teachers theory.

OJ 5/7a, [34] (formerly vC 34) Handwritten postcard from Schenker to Cube, dated December 5, 1930

Gives dates and place of Weisse's lectures in Vienna.

OJ 12/6, [7] Handwritten letter from Jonas to Schenker, dated February 25, 1931

Jonas sends three essays and asks for Schenker's comments.