Hulusi is a representative instrument of China's classical musical instruments, which originated in China's pre-Qin southwest region of the Dai, Dai folk have been circulating such a legend: it is said that in the pre-Qin period, China's southwest region once erupted in a flash flood. In the flash flood, a Dai young man risked his life to pick up a big gourd, he rode the big gourd through the waves, and eventually saved his sweetheart. The young man's faithful love touched the Buddha, the Buddha gave him a gourd equipped with a pipe, the young man can hold the gourd to play a beautiful music. Once the music, suddenly flash floods recede, the wind and waves calm, flowers bloom, peacocks open screen, people have come to wish the couple good luck and happiness. From then on, the hulusi has been passed down from generation to generation in the Dai family. Dai people are versatile, they can sing and dance, in the festival, whether it is in the river dragon boat, or in the riverside to put Gao Sheng, or in the square to catch the swing, or in the bamboo building to drink and sing, you can hear the moving music of the hulusi.