Handwriting and other details have been reported based on the notes of David Berger, Andrew Homzy, Dr. Theodore Hudson, Walter van de Leur, and Dr. Mark Tucker.
There appears to be a number from the Duke Ellington Band Book: 237.
Lonely moments is contained in two folders consisting of 26 parts in f minor concert -- in ink -- in unidentified hands (Williams, Whaley?).
Folder A contains parts for 5 reeds - alto 1, alto 3, tenor 1, tenor 2, baritone; 4 trumpets - 1, 2, 3, 4; 3 trombones - 1, Tizol, Tricky (2); bass; guitar. Key signature for these parts implies F Major concert, but accidentals are used throughout to create minor mode.
Folder B contains parts for 5 reeds - Pro, Rab, Jimmy, Sears, Carney; 3 trombones - Jones, Wilbur, Tizol; bass; drums; guitar. -- from the Duke Ellington Library.