In the 19th century heyday of Chinese Opera (Wayang), groups played a prominent role to fulfil religious-communal functions and also provided entertainment before film and amusement parks grew in prominence. The tradition continues. Training is rigorous and takes 7 years for a child to train to performance standard. Quality is judged by vocal range, facial expression and skill of stage combat. Today, chinese street opera is a dying art form and groups perform mainly for love and in their belief that the spirits of the dead must be appeased.