Photo shows a close look of a Guqin, a seven-string traditional Chinese instrument, made in Tang Dynasty (618-907), during a Guqin exhibition at Zhejiang Provincial Museum in Hangzhou, capital of east China's Zhejiang Province, Sept. 6, 2019. An exhibition of 21 Guqin made in Tang (618-907) and Song (960-1279) Dynasties opened here Friday. The Chinese Guqin, or Chinese zither, has a history of over 3,000 years and is a representative of traditional Chinese music. Guqin and its music was inscribed on the Representative List of the Intangible Cultural Heritage of Humanity. (Xinhua/Weng Xinyang)