China's famous traditional conducting instruments.

Yuping Xiao Di is one of the traditional "Three Treasures in Guizhou" and a famous traditional bamboo wind instrument in China, which is famous for its clear timbre and exquisite carving.

"There are more than 70 processes for making flutes. The key steps are material selection, baking, straightening, punching, painting and carving." Liu told reporters: "The most difficult thing to make a flute is to punch holes. It is necessary to calculate the ratio of sound hole distance, which is related to the pitch, timbre and sound quality of the flute, and it is also necessary to have a considerable level of flute performance and music appreciation. The voice is not allowed, and everything is useless. "