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Beverly: Sea Change Theatre Company presents Sophocles’ “Antigone,” a tragedy about truth and death. Friday and Saturday, March 14-15, 8 p.m.; Saturday, 3 p.m. Sea Change Theatre Company, Dane Street Church, 10 Dane St. $10-$12. www.seachange theatre.com .
Rockport: Americana trio Red Molly is known for its gorgeous three-part harmonies blending bluegrass with a touch of western swing. Saturday, 8 p.m. Shalin Liu Performance Center, 37 Main St. $32, $24, $18. 978-546-7391, www.rcmf.org .
Marblehead: Kaleidoscope Chamber Ensemble performs William Grant Still’s Miniatures for flute, oboe, and piano; Jacques Ibert’s Deux Interludes for flute, violin, and piano; Randall Thompson’s Suite for oboe, clarinet, and viola; and Mozart’s Piano Quartet in G. Sunday, 4 p.m. Old North Church, 35 Washington St. Free-will offering. 781-631-1244, www.kaleidoscopechamber.com .
Somerville: To mark the 2,058th anniversary of the Ides of March and the assassination of Julius Caesar, Union Square in Somerville will turn into a Roman forum for the afternoon. Saturday, 1-6 p.m. Union Square Plaza, Somerville Avenue and Washington Street. Free. 617-955-0080, www.somervilleartscouncil.org .
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