The Steve and Iqua Colson Quintet + The Amina Claudine Myers and Reggie Nicholson Duet

The Association for the Advancement of Creative Musicians, a venerable experimental-music collective whose Chicago roots stretch back to the mid-’60s, kicks off its annual fall series. Pianist Steve Colson and his wife, vocalist Iqua, present their collaborative venture, and pianist-vocalist Amina Claudine Myers and drummer Reggie Nicholson appear as a duo.