Duquesne University's Tamburitzans dance group will perform at 3 p.m. Saturday at the Haven I dining room, Concordia Lutheran campus, 112 Marwood Road, Cabot. Reserved seats are $10. Call Donna Heintz at 724-352-1571, Ext. 8251. Any available tickets will be sold at the door for $15.

“Sister's Easter Catechism” featuring Maripat Donovan and Marc Silvia will be staged at 1:30 p.m. Saturday at St. Ferdinand Roman Catholic Church's Oldenski Hall, 2535 Rochester Road, Cranberry Township. Reserved seats are $37.50, and general seating is $32.50. Tickets must be purchased in advance; call 724-779-3986.

Comtra Theatre, Route 19 in Cranberry Township, presents the spy spoof “The 39 Steps” through Saturday. A tiny cast plays an assortment of more than 60 characters as well as the occasional prop and set piece. Tickets are $12. Curtain is at 7:30 p.m. Fridays and Saturdays. Call 724-591-8727 or 724-591-5383.

The Slask Song and Dance Ensemble of Poland will perform at 7:30 p.m. Tuesday at the Byham Theater, 101 Sixth St. Tickets are $23 to $48. Call 412-456-6666.Pittsburgh Musical Theater and Robert Morris University present the musical “Children of Eden” through Sunday at the Byham Theater, 101 Sixth St. Area residents in the show include Brady Patsy of East Brady, Brecken Farrell of Saxonburg, Jessica Ortiz of Penn Township, Amanda Sybert and Daniel Terwilliger, both of Butler; Amy and Andre Parker of Summit Township; and Victoria English of Karns City. Show times are 7:30 p.m. Friday and Saturday and 2 p.m. Sunday. Tickets are $12 to $44. Call 412-456-6666.Pittsburgh Public Theater presents “Thurgood,” featuring Montae Russell as the first African-American Supreme Court Justice, through April 7 at the O’Reilly Theater, 621 Penn Ave. Curtain is at 7 p.m. Tuesdays, 8 p.m. Wednesdays through Fridays, 2 and 8 p.m. Saturdays, and 2 and 7 p.m. Sundays, with some exceptions. Call 412-316-1600.