The St. Cecilia Trio, composed of pianist Duncan Cumming, Bates class of 1993; cellist Sölen Dikener; and violinist Hilary Walther, will perform three concerts at Bates College July 13, July 15 and July 17 at 8 p.m. in the Olin Arts Center Concert Hall. Tickets are $5 for general admission and $2 for students and seniors. Call the Olin Arts Center, 207-786-6135, for more information.