The Four Seasons Chamber Music Festival, an annual event at East Carolina University, is expanding into the Triangle with a concert Saturday at Raleigh’s St. Mary’s School in the Smedes-Emory Parlor. Three string players (headed by violinist Ara Gregorian, festival founder) and two pianists combine to play piano quartets by Brahms and Fauré and a four-hand piano rondo by Schubert. (Note: the concert is not part of the regular Smedes Parlor Concert Series). 8 p.m. $25. 1-800-ECU-ARTS; ecu.edu/fourseasons.