The Portland Piano Trio, pianist Anastasia Antonacos, cellist Wayne Smith and violinist Tracey Jasas-Hardel, will perform “Syzygy” by Maine composer Marianna Filippi, as well as music by Amy Beach and Dmitri Shostakovich, at 3 p.m. Sunday, Sept. 22, at Olin Arts Center, Bates College, Lewiston. Tickets, $15, are available at batesconcerts.eventbrite.com. A limited number of complimentary tickets are available for students and seniors 65-plus. For more information, call 207-786-6135 or email olinarts@bates.edu.