Blues Jam (rotating host bands, Chicago Beef Joint)

Occasional.

A regional blues society's own calendar confirms a recurring, rotating-host blues jam at Chicago Beef Joint in Grand Rapids, 6–9 PM, with hosts including The Left Handed Rollers, the Left Paul Trio, Back Door Blues Band, and Tomas Esparza, across varying days — Tuesday, Saturday, and Friday have all appeared [s1]. There is no single fixed weekday.