Concordia Haven Apartments hosts an open house from 3 to 6 p.m. Sept. 7at Haven II in Cabot followed by a concert featuring the Dixieland jazz ensemble on the outdoor patio at Entrance 5. Admission is free. Refreshments will be served. Call 724-352-5378.

The newly renamed Succop Nature Park, 185 W. Airport Road, Penn Township, formerly the Succop Conservancy, celebrates its new moniker with picnics from 5 to 8 p.m. Sept. 17 and Oct. 16 and a croquet match from 1 to 5 p.m. Sept. 28.

“Music in the Courtyard” concert series, hosted by Butler Public Library and Thompson-Miller Funeral Home, takes place in the courtyard at the library, 218 N. McKean St. Concerts are free, and refreshments will be provided. The TMG Jazztette will play jazz tunes Sept. 21 and The Rumblers will play oldies Oct. 19. Concerts are 2 to 4 p.m.

The Volunteers of the U.S. Army Field Band, a pop/rock ensemble, will perform at 7 p.m. Friday at Bandstand Park in Franklin, hosted by the Franklin Fine Arts Council. Call 437-1619 or visit www.franklinpa.gov. Admission is free.Allegheny RiverStone Center for the Arts presents Wurlitzer theater organist David Wickerham at 7 p.m. Sept. 5 in Lincoln Hall, 42 S. Palmer St., Foxburg. Reserve tickets by calling 724-659-3153.Hartwood Acres hosts the Allegheny County Music Festival at 5 p.m. Sunday in the amphitheater off Middle Road, Allison Park. Admission is a $20 per car to benefit children and youth served by the Department of Human Services. Call 412-767-9200.