Dance mode. Tonggu is a bronze percussion instrument of the southwest minorities in ancient China. Its shape comes from drums or copper pots, and it is used for playing music or dancing. As a ritual vessel, it is also used for sacrificial ceremonies and other activities, which are mainly popular in Yunnan, Guangxi, Guangdong, Guizhou, Sichuan, Hunan and other provinces (regions) and spread to Southeast Asia.