Bangzi tune. According to the query on this opera website, we know: Daping Diao is one of the local traditional operas in Henan and Shandong Provinces and one of the national intangible cultural heritages. Daping Diao originated in the mid-Ming Dynasty and is mainly popular in northern Henan, southwestern Shandong, eastern Henan, northern Anhui, and southern Hebei. It has a history of more than 500 years. The singing music of Daping Diao belongs to the Bangzi tune system. Because it has a lower pitch than Shandong Bangzi, Henan Bangzi and Hebei Bangzi, it is called Daping Diao. The musical structure is mostly the same as that of Henan opera, but the artistic style is more rough and explosive than that of Henan opera. Daping Diao had a great influence on the vast area north of the Yellow River, and gradually formed three branches, namely, East Road Daping Diao, West Road Daping Diao and Hedong Daping Diao.