A song of Yin and Yang

In the early 1930s, it was hard to get a ticket to Shengping Theater. Many dignitaries rushed here just to see the style of the leading actress Song Danping. Things are unpredictable. Later, a fire broke out in the theater, and the theater has been abandoned since then. But strangely, every full moon night, singing can be heard in the theater. We came here as tourists to explore...