The Washington Dunhuang Guzheng Academy and Washington Qinqiang Club will perform in concert at 7:30 p.m. Saturday at the Kreeger Auditorium, Jewish Community Center of Greater Washington, 6125 Montrose Road, Rockville. The Guzheng, also simply called zheng, is a Chinese plucked zither with 18 or more strings and movable bridges. It is the ancestor of several Asian zither instruments, such as the Japanese koto and the Korean gayageum. Qinqiang is a Chinese folk music opera popular mainly in China’s Northwest, particularly Shaanxi and Gansu Provinces. One of the major Chinese operas, it is believed to be the ancestor of all other Chinese operas, including Peking opera. The performance will be subtitled in English. Admission is free. Donations are welcome. For more information, call 301-610-6592.