September 18. The innovative So Percussion’s four members, Josh Quillen, Adam Sliwinski, Jason Treuting, and Eric Beach, were recently appointed co-directors of the Bard College Conservatory’s new percussion department. The group, which this month plays the Richard B. Fisher Center’s Conservatory Sundays series, is best known for performing works by “serious” composers like Steve Reich, Arvo Part, and David Lang, but it also collaborates with such edgy rock acts as the Dirty Projectors, Dan Deacon, Matmos, and Glenn Kotche. (The Merce Cunningham Dance Company dazzles September 9-11.) 3pm. $15, $20. Annandale-on-Hudson. (845) 758-7900; www.fishercenter.bard.edu.