The annual East End festival kicks things off with a free outdoor concert on Thu 28 featuring chamber jazz pieces by old-school French jazzer Claude Bolling and an evening of "undisputed masterpieces" by Schubert (Quartettsatz in C minor), Berio (select Duetti for Two Violins), Roussell (Trio for Flute, Viola and Cello) and Brahms (Piano Quintet in F minor) on Sun 31. Complete schedule and details are available at bcmf.org.