Chapter 1, 25 August 1938
Igor Stravinsky
Nadia Boulanger
Paul Sacher Stiftung
25 August 1938
Letter
Chapter 1, 12 September 1931
Nadia Boulanger
Igor Stravinsky
Bibliothèque nationale de France
12 September 1931
Letter
Chapter 1, 8 September 1931
Igor Stravinsky
Nadia Boulanger
Paul Sacher Stiftung
8 September 1931
Letter
Chapter 1, 7 September 1931
Igor Stravinsky
Nadia Boulanger
Paul Sacher Stiftung
7 September 1931
Letter
Chapter 2, 13 December 1939
Igor Stravinsky
Nadia Boulanger
Paul Sacher Stiftung
13 December 1939
Letter