Who knows the origin of the musical instrument Ba'u?

Bawu is a wind instrument of the Yi, Hani, Dai, Wa, Brown and Miao ethnic groups. Popular in Yunnan Province, Honghe, Wenshan, Simao, Xishuangbanna, Lincang, Dehong, Guangxi Zhuang Autonomous Region, Rongshui, Guizhou Province, Qiandongnan and Qiannan and other places. Varieties: There are single-pipe and double-pipe varieties. The pipe body is thick and long horizontal blowing; thin and short vertical blowing. Commonly used Bawu full length of 30-60 centimeters. Range: soprano bawu f1-g2, alto bawu b-c2, bass bawu f-g1. In recent years, yunnan folk musical instrument maker yang sound made of wood pipe bawu, made of purple oil wood, with copper socket.

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