COUNTYCahal Dunne will perform at 7 p.m. Tuesday in the Haven I dining room at Concordia Haven Apartments, 112 Marwood Road, Jefferson Township. Admission is free. A native of County Cork, Ireland, Dunne is a singer, songwriter, story teller, and comedian. Call 724-352-1571, Ext. 8518, or visit concordialm.org/events-news/cahaldunnecabot2016.Slippery Rock University department of music will present its production of Puccini’s “Sister Angelica” at 7 p.m. Friday and at 3 p.m. Saturday at Covenant Presbyterian Church, 230 E. Jefferson St. “Sister Angelica” is an hour-long musical drama. It will be sung and acted by SRU students of diverse majors, and played by an orchestral band of SRU students and area professionals. Admission is $10 for adults and $5 for students.

REGIONHarrisville Community Band will perform it annual spring concert at 7 p.m. Friday at the Harrisville Fire Hall, 313 E. Mercer St. Selections will include “All Honor to Old Glory,” “Clear Track Polka,” “How Great Thou Art,” and “Highlights From South Pacific.” This volunteer group of musicians is made up of area residents ranging from teenagers to senior citizens. Admission is free. Fire department personnel will sell refreshments.Allegheny RiverStone Center for the Arts presents “It Takes Two to Tango — The Kaplan Duo” at 2 p.m. Sunday in Lincoln Hall, 42 S. Palmer St., Foxburg. Tickets are $25 for adults and $5 for students. Call 724-659-3153 or visit alleghenyriverstone.org.