Among the founding members were trad pianist Art Hodes, Muhal Richard Abrams, who a few years earlier had also co-founded the Association for the Advancement of Creative Musicians (AACM), Harriett Choice, then music writer for the Chicago Tribune, Joe Segal, whose Jazz Showcase has kept the flame for bebop lit for 50 years, Bob Koester, owner of Delmark Records, Don DeMicheal, drummer and editor of Downbeat magazine, jazz promoter and supporter Penny Tyler.
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