According to the Jazz institute of Chicago:
“The 25th Annual Chicago Jazz Festival opens with a special tribute concert on Thursday, August 28 at the Symphony Center (220 S. Michigan Avenue). It will also feature extended hours, 11 a.m.–9:30 p.m. in Grant Park, Friday–Sunday, August 29–31. The Jazz Club Tour, sponsored by the JIC, returns Wednesday, August 27.
While details of the final lineup are still under negotiation, the following acts are expected to appear: McCoy Tyner Big Band; “The Message Lives: A Tribute to Art Blakey,” featuring the Branford Marsalis Quartet and the Jazz Messenger Alumni All-Stars; the Dave Holland Big Band; the Elvin Jones’ Jazz Machine; Jane Bunnett and the Spirits of Havana; Ken Vandermark; Freddie Cole; and Karrin Allyson.“
Rumor has it that Roscoe Mitchell is also scheduled to perform.