Sister Xiao, Buyi and Miao people play musical instruments. The Bouyei language is called Uli Ulu. In Miao language, it is called Zhandaxi, Libu, and Mimi. Chinese called sister Xiao. There is such a legend about the origin of the sister Xiao.

In the past, there was a pair of brothers in the village. Due to the early death of their parents, the two brothers depended on each other for life by going up the mountain to collect firewood. As adults, they fell in love with two sisters from a neighboring village. But because his family was poor, he couldn't buy a dowry gift and come to propose a marriage. In order to relieve the pain of lovesickness in their hearts, the brothers cut bamboo pipes in the bamboo forest, branded holes and practiced playing. Over time, actually "practice" out a series of lingering, beautiful music. The two sisters heard the continuous love from the music played by the brothers, and thus developed a continuous love for them. Finally, under the auspices of the patriarch, the brothers and sisters married the sisters into the house.

The bamboo pipe that "matches" them also has a beautiful name - "Sister Xiao"!