The first five weeks bristled with listener-friendly new music, fresh young performers, diverse older ones, jazz, tango and even contemporary music by Chinese-American composers. And Chamber Music Northwest has pulled this off while holding on to most of its aging core audience, its renowned longtime performers, and a healthy dose of core, classic repertoire. Audience numbers have stabilized—a triumph in the beleaguered classical-music world—and the demographic is gradually growing more diverse.