Jiang Honglian plays the Xiao at a studio in Cangzhou, north China's Hebei Province, May 16, 2019. Xiao is a vertical end-blown flute which is generally made of bamboo. It has one blowing hole and several finger holes and is used in Chinese traditional and classical music. It has soft volume and slow and lyrical tunes. Its mellow and graceful sound is suitable for both solo playing and ensemble pieces with other instruments. (Xinhua/Zhu Xudong)