The tune "I Want To Be a Sideman" submitted by Frogman 09-05-2016 11:23am, caused me to think how a major jazz musician coming through St. Louis wanting to do a gig would pick up sidemen. At that time, there were so many good jazz musicians in St. Louis, that it wasn't a major problem to pick up good sidemen.
A good musician who didn't want to leave home, and find his lady done took up with "Jody" and gone when he gets back home, would definitely want to be a "sideman".
He would belong to the local, have a book, and have fun in between gigs, without any responsibility; that sounds like my kind of life when I was young, and my only goal in life was to have fun.
This is the song I liked;
https://www.youtube.com/watch?v=UdOav-Gt6mI
Enjoy the music.