In "My Walking Stick" with Louie Armstrong, the Mills Brothers "band" plays behind Louie's vocal, then there's a duet with Louie's trumpet along with Herbert's mouth trumpet. With Cab Calloway, Cab's band does a solo, then the MBs come in with their vocal trumpets and trombones, like a little band. Wonderful music."Flat Foot Floogie With A Floy Floy." Check out the vocal bass with "I Can't Give You Anything But Love Baby" here.
Note, I know I repeat stuff from time to time. Goes with the getting older territory. Well hey, your memory is not infinite, right? As new stuff comes in, other stuff gets jettisoned. Right? Right?