Straight flute, also known as gap flute. Miao fringe air music instrument. In Miao language, it is called exhibition pole, which means straight blowpipe. Also known as Zhanqingjiao in Hmong language, it means a notched blowpipe. Popular in Xingyi and Anlong in Guizhou Province, Longlin, Xilin, Napo in Guangxi Zhuang Autonomous Region and Guangnan and Funing in Yunnan Province. W...