Tom Merriman arranged and/or produced music for which singer strongly associated with the Cotton Club?
Tom Merriman:  Merriman led the Liberty Network Band, and arranged and/or produced music for Louis Armstrong, Duke Ellington and Cab Calloway. Cab Calloway: Cabell "Cab" Calloway III (December 25, 1907 – November 18, 1994) was an American jazz singer and bandleader.
Cabell "Cab" Calloway III