A 50 Plus Lunch and Learn on the History of Harmonizing is set from noon to 1:30 p.m. at the Roeland Park Community Center, 4850 Rosewood Dr.

The quartet, Swing Shift, will perform holiday favorites and then share some history and stories about quartet music. A buffet catered meal will be served before the presentation. Doors will open at 11:50 a.m.

Cost, including lunch, is $29 for Johnson County residents, $32 for nonresidents. Register online at JCPRD.com/register.