A1 recorded at Cotton Club, New York City, May 8, 1938. A2, A3 and A4 recorded at Cotton Club, May 22, 1938. A5 and side B recorded at Ritz-Carlton Hotel, Boston, July 26, 1939.
The Cotton Club broadcasts were originally recorded in 12 inch acetates, as presented on this album. They all end with incomplete performances. The Boston broadcast was recorded on two 16 inch acetates and is a complete radio program,