OJ 12/7, 5 Handwritten postcard from Kalbeck to Schenker, postmarked November 15, 1899

Kalbeck moves Schenker's morning visit to the afternoon, and warns that his piano is out of tune.

OJ 10/3, [28] Typewritten letter from Deutsch to Schenker, dated February 14, 1922

Deutsch offers to provide several books to Schenker instead of two or three hardback copies of the "Moonlight" Sonata edition, and then details several misprints and factual errors in Romain Rolland's biography of Beethoven.

OJ 70/35, [9] Handwritten open letter from Schoenberg dated September 16, 1949, with handwritten letter from Schoenberg to Moriz Violin, dated October 14, 1949

Schoenberg sends a copy of his open letter on his 75th birthday, embedded within a letter in which he expresses pleasure at Violin's report of his Carmel performance.

Diary entry by Schenker for 7 August 1906

Diary entry by Schenker for 8 August 1906

Diary entry by Schenker for 7 December 1909

Diary entry by Schenker for 14 March 1913

Diary entry by Schenker for 16 May 1915

Diary entry by Schenker for 7 May 1916

Diary entry by Schenker for 25 June 1916

Diary entry by Schenker for 23 October 1916

Diary entry by Schenker for 10 January 1917

Diary entry by Schenker for 18 May 1919

Diary entry by Schenker for 12 June 1930

Diary entry by Schenker for 12 November 1930