Aston Magna Music Festival and the Mahaiwe co-present “Early Duos for Fortepiano and Violin.” The music of Mozart, CPE Bach, Joseph Boulogne and Beethoven, with Sylvia Berry, fortepiano, and Daniel Stepner, violin. Free, donations welcome. Link to the event June 13, 7 p.m., at mahaiwe.org/events/music/, or astonmagna.org/june-13