Chamber Music Northwest’s Summer Festival continues with a weekend program featuring artists that include flutist Tara Helen O’Connor, mezzo soprano Sasha Cooke, and the Orion String Quartet. Works performed include J.S. Bach’s Sonata in B Minor for Flute and Piano; Lowell Liebermann’s Four Seasons for mezzo soprano, Clarinet and Piano Quartet; and Samuel Baron’s arrangement for string quartet and wind quintet of selections from Bach’s The Art of Fugue. Two performances: 8 p.m. on July 20 at Reed College and 4 p.m. on July 21 at St. Mary’s Academy. Learn more and reserve tickets at the CMNW website.