The form of Southern drama that varies from z j probably originated in the SE seacoast city of W nzh u. They had no explicit internal division into scenes. Division into scenes had to be made on the basis of the structure of the story. They had arias alternating with prose and stage directions. Both singers and rhymes could change at random within a scene or act.
All roles can sing.
Sh ng male lead or hero. D n serious female lead. Ch u a clown. Scene 2 introduces the Sh ng. He is said to have isolated himself for three years to write the play.