Mouth flute, a bamboo musical instrument, originated in the Yellow Emperor period. It was invented by Mr. Yu Xunfa, a bamboo flute player, in early 1971. During the Yellow Emperor period, that is, about 4,000 years ago, a large number of bamboos grew in the Yellow River Basin, and bamboo was used as a material to make flutes. The "Historical Records" records: "The Yellow Emperor o...