Musicians are invited to bring an instrument and join Prairie Moon’s first-Thursday jam; listeners can come without playing. The Nov. 5 listing names the players, including Brandon Harper on keys.

All times are local to the venue · America/Chicago
Prairie Moon advertises two recurring jazz offerings: Wednesday-night live jazz and a first-Thursday open jam. For the Nov. 5 session, the venue’s general description of a rotating third instrument becomes a specific keyboard part in the event listing.
The jam takes place on the first Thursday of each month. Prairie Moon separately lists live jazz on Wednesdays from 9 to 11 p.m.; those are distinct recurring offerings, so check the Thursday listing if you’re looking for this open session.
For its general description of the jam, Prairie Moon says Clark Sommers usually hosts on bass, Chase Wilkins plays drums and a third instrument rotates. The North Shore listing gives the Nov. 5 edition a specific lineup, rather than leaving that changing part unspecified.
Further reading: Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗

The event listing names Clark Sommers as host, with Chase Wilkins on drums and Brandon Harper on keys. It describes Sommers as one of Chicago’s top bassists. The venue’s broader description says the third instrument rotates; Harper’s keys are the specific choice named for this edition.
The session runs from 8 to 10 p.m. Prairie Moon describes the jam as a first-Thursday-of-the-month event.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
The listing says there is no cover charge. It does not specify whether a food or drink purchase is expected.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗
Reservations are encouraged for people coming to listen, but the listing does not say they are required. Prairie Moon’s listed phone number is (847) 864-8328.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗
1635 Chicago Avenue, Evanston, IL 60201.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
The event listings do not state an age policy.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
The event is at 1635 Chicago Avenue, Evanston, IL 60201. The listings do not specify an event entrance, transit options, parking or accessibility facilities. Use the map or directions link to calculate a route from your own starting point.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
Yes. Prairie Moon invites musicians to bring an instrument and join. The listings do not describe a sign-up or turn-taking process; call (847) 864-8328 if you want to check how participation is arranged.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗ · Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
Reservations are encouraged for listeners, but the event listing does not say they are required. Prairie Moon lists (847) 864-8328 for calls.
Chicago's North Shore CVB - Welcome - Prairie Moon Open Jazz Jam Session ↗
They are listed separately. Prairie Moon advertises Wednesday live jazz from 9 to 11 p.m.; the open jam is held on the first Thursday of the month.
Jazz jam sessions in Chicago and Evanston — Prairie Moon restaurant in Evanston, IL ↗
1635 Chicago Avenue, Evanston, IL 60201
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Event, planning and background information checked 2026-11-02 against the linked sources.