In 1966 Sam Charters showed up in the Jazz Record Mart (aka Delmark) and he told me I should give him Bob Koester's phone book to copy some numbers. I declined, but he went ahead with his project.
DAMN!!! I had the pleasure of attending his gigs from 1964 on....
Thanks to Bob Koester for introducing me to Otis.
Not sure any of his recordings give a decent picture of the power of his South & West Side gigs back then.
Grateful for what we have.