COUNTY

Pittsburgh’s Masterworks Concert Chorale, a chorus of singers from Greater Pittsburgh, will perform at 2 p.m. Saturday in the Concordia Haven I dining room, Entrance 2A, 112 Marwood Road, Jefferson Township. Admission is free. Visit www.concordialm.org.

Opus I Music Society will present a program by Kathy Csellar on “Celebrating the 100th Anniversary of Our National Parks with Movie Themes” at 9:30 a.m. Monday at LifePointe Alliance Church, Route 228, Adams Township.

Ploughshare Poets will play Celtic traditional and nontraditional music at 7 p.m. March 18 at Bottlebrush Gallery & Center for the Arts, 539 Main St., Harmony. A dinner will be at 5 p.m. at the Harmony Inn. Cost for the dinner and show is $45. Reservations are necessary. Call 724-452-0539.