Xoan singing is accompanied by dancing and musical instruments such as clappers and a variety of drums.

UNESCO: MEDIA SERVICES

Opera audiences are big clappers, too, but their excitement has a critical edge, and opera houses are the only places where I've heard booing at a high-art performance.

WSJ: Theatergoers: Can I Get an Amen? | Sightings by Terry Teachout

"Maybe that attracts people - but we are not happy-clappers!"

BBC: Congregation outgrows church

Of nanyin s three components, the first is purely instrumental, the second includes voice, and the third consists of ballads accompanied by the ensemble and sung in Quanzhou dialect, either by a sole singer who also plays clappers or by a group of four who perform in turn.

UNESCO: Culture