Think chamber music has the effect of two sedatives and a dry martini? Brooklyn Rider could be the ensemble that dispels that mindset for good. The string quartet takes its repertoire seriously – a blend of classics and wildly inventive interpretations bending genres – but if Brooklyn Rider stands out, it’s because of its attitude. Fresh and willing to take chamber music into new environs and directions, the ensemble brings a new kind of energy to every performance. And, Tulsa is lucky, because we’ll get three chances to see Brooklyn Rider. Catch it at 10:30 a.m. Saturday, Sept. 21, for a free community performance at Foolish Things Coffee, 1001 S. Main St. Later that night, Brooklyn Rider performs a salon concert at 7:30 p.m. at the Tulsa Performing Arts Center’s Westby Pavilion for season subscribers, but tickets may be made available later this week for that show, too (check at www.chambermusictulsa.org). At last, look for the group at 3 p.m. Sunday, Sept. 22, at the Tulsa PAC’s John Williams Theatre, 110 E. Second St. Tickets are $25 each. Help Chamber Music Tulsa celebrate its big 60th season at www.myticketoffice.com.