Beginning with an account of the context in which the Carl Nielsen Brevudgaven (translated: The Carl Nielsen Letter Edition) began, this paper describes the source material for the eleven volumes and separate index. Eight volumes have already been published; the Edition will be completed in 2014. While the Edition is still a work in progress, it highlights the stages, themes, and general progression of Carl Nielsen’s life and the way these interact with his family, the music and cultural scene, and society in general. How private is the Edition, one might ask, and what does his private life have to do with his music? Is there a connection between life and art, or is there no connection, or perhaps the opposite: that the artistic visions, an...