The Mike Flack octet will perform in front of the community hearth at Centennial Park on Tuesday, July 29 at 7 p.m. (Centennial Park is located on the corner of Whitney and Center Streets). The octet plays west coast cool jazz sounds made famous by the Dave Pell Octet, including songs arranged by some of the top names in music such as Bob Florence, Marty Paich, Shorty Rogers, John Williams and Bill Holman. Bring your lawn chairs and picnic baskets for a Ravinia-style affair. Rain location: Grayslake Heritage Center & Museum, 164 Hawley Street.