How does cello accompany Henan Opera?

Set the A string to quasi-pitch. Cello can set the A-string as a quasi-pitch, and can accompany Henan Opera, which is also called Henan Bangzi, Henan Tenor and Henan Lu, while the mountainous area in western Henan is called Beishanhou, which is an extremely important kind of China Bangzi opera and a traditional drama mainly popular in Henan Province and spread all over the country.