The Wu Chou is one of the most demanding in Peking opera, because of its combination of comic acting, acrobatics, and a strong voice.

The Chou is the character most connected to the guban, the drums and clapper commonly used for musical accompaniment during performances.

The clown is also connected to the small gong and cymbals, percussion instruments that symbolize the lower classes and the raucous atmosphere inspired by the role.

This is considered a license of the role, and the orchestra will accompany the Chou actor even as he bursts into an unscripted folk song.

However, due to the standardization of Peking opera and political pressure from government authorities, Chou improvisation has lessened in recent years.