This book focuses on the Liangzhou Xianxiao folk art of Wuwei, Gansu, and analyzes its openness as structural characteristics. It points out the connections between this folkart and various other art forms such as storytelling, opera, and drum lyrics. This book also compiles 12 modern inheritance lineages of Liangzhou Xianxiao, involving more than 150 people, and provides preliminary research on the guild organization of blind artists, the San Huang Hui. In addition, this book also conducts a statistical analysis of the popular sanxian tuning both locally and nationally, and proposes the hypothesis that the "five+four" tuning originates from natural overtones. Finally, the author criticizes the branching viewpoints, including the idea that Liangzhou Xianxiao originates from Dunhuang Bianwen and folklore, and the belief that it is the descendant of Dunhuang Bianwen and Hexi Baojuan.