Zhongruan is a Chinese musical instrument with a quiet, soft and poetic timbre, similar to Qin Qin. Ruan Xian originated in Qin and Han Dynasties, flourished in Tang and Song Dynasties, and declined in Ming and Qing Dynasties. In the Qin Dynasty, hundreds of thousands of people built the Great Wall, and they couldn't use shouting to talk. Later, they made a drum, and they knew it ...