SANDERS THEATER
Bach Society Orchestra. Bach: Brandenberg Concerto No. 4, Cantata No. 56 (Justino Diaz, basso, soloist), Piano Concerto in D Minor (Tedd Joselson, soloist); Handel: an Italian cantata (Diaz). Tickets: $.95. Saturday, April 13, 8:30 p.m.
DUNSTER LIBRARY
Cambridge Musica Antigua. Street songs of 1535; Arcadelt: Missa Noe-Noe. Free. Sunday, April 14, 3 p.m.
HOLMES LIVING ROOM
Cathy Kautsky, pianist, in recital. Works of Beethoven, Ravel, Schumann. Free. Sunday, April 14, 3 p.m.
QUINCY DINING ROOM
Piano and violin recital by Arlene and Robert Portney. Works of Bach, Bartok. Beethoven, Liszt, Franck. Free. Sunday, April 14, 8:30 p.m.