Though the members of this trio met at the Rimsky-Korsakov Conservatory in the Russian city that gave it its name, they didn't start performing together until they reunited in association with the Russian folk-instrument orchestra the Washington Balalaika Society. Svetlana Nikonova plays the domra, Vladimir Zakharevich plays the accordion-like bayan, and Andrei Saveliev plays the contrabass balalaika. They perform for an Art After Hours event at Strathmore. Wednesday, Dec. 22, at 7:30 p.m. The Mansion at Strathmore, 5301 Tuckerman Lane, North Bethesda. Tickets are $15. Call 301-581-5100 or visit strathmore.org.