OJ 13/37, 5 Handwritten letter from Ernst Rudorff to Schenker, dated November 21, 1908

Rudorff's poor health is restricting his activities. — He praises Schenker's Harmonielehre, especially its views on the church modes. — He also endorses Schenker's condemnation of Wagner's musical influence.

OJ 12/6, [35] Handwritten letter from Jonas to Schenker, dated July 25, 1934

Jonas has changed his travel plans; describes Bayreuth; sends corrigenda list for his Das Wesen; Roth is working on continuo realizations of Handel.

Diary entry by Schenker for 27 August 1912

Diary entry by Schenker for 5 December 1913

Diary entry by Schenker for 3 April 1926

Diary entry by Schenker for 28 March 1929

OC 3/2-3: Oct 1913-Jun 1914 Sofie Deutsch: lesson: Thursday, January 15, 1914