OJ 14/15, [14] Handwritten letter from Schoenberg to Schenker, undated [c. February 1, 1907]

Schoenberg expresses disappointment at Schenker's non-attendance, and hopes he can attend the performances of his String Quartet [No. 1] and [First] Chamber Symphony on February 5 and 8.

OJ 9/6, [47] Handwritten postcard from Eugen d'Albert to Schenker, postmarked February 4, 1907

Eugen d'Albert asks if Schenker is coming to the concert, otherwise suggests a time to meet.

Diary entry by Schenker for 3 February 1907

Diary entry by Schenker for 4 February 1907

Diary entry by Schenker for 5 February 1907

Diary entry by Schenker for 6 February 1907

Diary entry by Schenker for 8 February 1907

Diary entry by Schenker for 12 February 1907

Diary entry by Schenker for 16 February 1907

Diary entry by Schenker for 17 February 1907

Diary entry by Schenker for 18 February 1907

Diary entry by Schenker for 19 February 1907

Diary entry by Schenker for 20 February 1907

Diary entry by Schenker for 21 February 1907

Diary entry by Schenker for 22 February 1907

Diary entry by Schenker for 23 February 1907

Diary entry by Schenker for 25 February 1907

Diary entry by Schenker for 28 February 1907