Summer music events, hosted by he Harmony Business Association, will feature free concerts by the Zelienople-Harmony Community Jazz Band tonight and The Right Rhythm Band on Sept. 3, both beginning at 7:30 p.m. Those attending are to take lawn chairs; refreshments will be available. Call 724-452-7341.

The Musicians' Concert Band, a community group that performs at Slippery Rock University, will play in concert at 7:30 p.m. tonight in Miller Auditorium on campus. Admission to each concert is $3. Jeff Kroner is the music director.

The Thursdays in the Park Concert Series at Cranberry Rotary Amphitheater in Community Park, Cranberry Township, will present country music with Sarah Marince at 7 p.m. Aug. 13. Admission is free. Call 724-776-4806.

Free summer concerts on the lawn at the Harmony Inn, 230 Mercer St. in Harmony, will feature rockabilly band 706 Union on Aug. 13. Call 724-452-5124.

Friday Lunchtime Concerts take place at noon Fridays in the Garden Gazebo at the Municipal Center in Cranberry Township. Admission is free. Playing Friday will be the Greater Cranberry Bogmeister Chorus, a barbershop quartet. Call 724-776-4806.

A free Family Summer Concert Series, sponsored by Butler County Parks and Recreation Department, takes place at Alameda Park and will feature Dancing with Mary Lou at 6:30 p.m. Tuesday in the Carousel Shelter. The summer concert series ends with this performance by Joe Kemph and his band organ, Mary Lou. Admission is free. Call 724-284-5383.

Butler County Symphony's Concerts to Munch By take place from 12:15 to 12:45 p.m. Wednesdays through Aug. 19 at the symphony office, 259 S. Main St. Scheduled to perform Wednesday are Christie Kecskemethy, Stephanie Maharg and Gary Kleemann. Guests can take a bag lunch or buy one for $3 from City Subs. Call 724-283-1402.

<B>Hartwood Amphitheater</B> on Middle Road in Hampton Township will be the site of a free performance by Sun Volt with Jay Farrar at 7:30 p.m. Sunday. Call 412-350-2478.<B>Jazzlike</B> from 5 to 7 p.m. Tuesday in Agnes R. Katz Plaza, diagonal from the Benedum Center, 719 Liberty Ave., will feature Jevon Rushton Group this coming Tuesday. In case of inclement weather, JazzLive will move indoors to the Cabaret at Theater Square, 655 Penn Ave. Call 412-456-6666 or visit the Web site, www.pgharts.org.region<B>Kean Theatre</B> at St. Barnabas' Washington Place, 5847 Meridian Road, Gibsonia, hosts an oldies concert with The Fabulous Hubcaps at 8 p.m. Saturday at the Kean Theatre, 5847 Meridian Road, Gibsonia. Tickets are $39. Call 724-444-5326 or visit www.keantheatre.com. Proceeds benefit the St. Barnabas Free Care Fund.