OJ 12/9, [3] Handwritten letter from Karpath to Schenker, dated March 10, 1911

Karpath answers Schenker's reproaches that neither Violin's Über das sogenannte Continuo nor the first half-volume of his Kontrapunkt have been announced or reviewed in the Neues Wiener Tagblatt.

OJ 5/34, [1] Handwritten draft letter from Schenker to Alphons Rothschild, incompletely dated [March 2, 1911]

Highly rhetorical letter in which Schenker thanks Alphons Rothschild for the financial support for his first two volumes, and notifies him of the forthcoming monograph on Beethoven's Ninth Symphony.

OJ 9/18, [3] Typewritten letter from Wilhelm Bopp (Akademie für Musik) to Schenker, dated March 24, 1911

Bopp asks for a meeting with Schenker.

OJ 9/18, [4] Typewritten letter from Wilhelm Bopp (Akademie für Musik) to Schenker, dated March 27, 1911

Bopp warns Schenker of his unavailability one day.

Diary entry by Schenker for 2 March 1911