Classic Liuzi Opera is staged at the open ceremony of the Shandong intangible cultural heritage celebration month in Jinan, Jan 18, 2017. The opera, combining folk melodies and liuzi tunes, is usually accompanied by a sanxian (a three stringed instrument), a flute and a sheng (a woodwind instrument). It made the list of national intangible heritages on May 20, 2006. [Photo by Hu Honglin/sd.people.com.cn]