COUNTY

The lunchtime concert series hosted by the Butler County Symphony Association concludes for the season with a late summer jam session at noon Wednesday at the symphony office, 259 S. Main St. Admission is free. The concerts also are broadcast in Diamond Park. Visit www.butlersymphony.org or call 724-283-1402.

Butler County Symphony Orchestra presents “All Brahms” with violinist Andrés Cárdenes and cellist Marjorie Lange Hanna at 7:30 p.m. Oct. 7 in the Butler Intermediate High School auditorium. Call 724-283-1402, visit the office at 259 S. Main St., or visit www.butlersymphony.org.

Trombonist Harold Betters and his quartet will perform at 7 p.m. Saturday at the Mennonite Meeting House, 114 Wise Road, Harmony. Cost is $12 for adults and $5 for students. A portion of the proceeds will go to Historic Harmony.