Soprano Xia Yu (R) from China National Opera House instructs her colleague in singing after a benefit performance in Youyang Tujia-Miao Autonomous County, southwest China's Chongqing Municipality, Jan. 13, 2020. Artists from China National Opera House have given three lectures on singing and staged five benefit performances for local people in Pengshui, Youyang and Shizhu in three days. (Xinhua/Wang Quanchao)