By transcribing and indexing Schönberg’s calendars from 1945 and 1947, which can now be viewed in the image archive, we continue the insight into Schönberg's daily and weekly routines. Since 1936 the composer lived in Brentwood, Los Angeles. His calendar of 1947 contains not only everyday notes but also a music-historical reflection.

At the beginning of 1947, Schönberg meticulously noted his daily routine: On Thursday at 8:15 a.m. he takes his sons to school, on Saturday he meets his daughter for lunch at Nate and Al's Deli, and the health-stricken composer regularly checks his blood sugar levels. Probably on the evening of January 4, a music-historical consideration mixes in with the sober dates: "Had the idea of exposing Machaut's 'dissonances' as a 'false' reading. Intend to 'hear' each of the three voices in all keys and use those ♮ # or 𝄬 which correspond to the matter. I am sure!" Already at the end of 1931 the composer had dealt with the music of Guillaume de Machaut (1300 - 1377) on the occasion of Edwin von der Nuell's recently published book on "Modern Harmony".Nüll's presentation of the historical conception of third and sixth intervals as dissonances qualified Schönberg in a marginal note as "nonsense". He was convinced that, through an appropriate rendering of the musical text, the sound intentions of the late medieval composer could be put into perspective.