Dong Son bronze
Also called Dong Son drums, Đông Sơn bronze drums, Heger drums
Mainland ceremonial bronze of the Yunnan–Red River corridor: large tuned drums (Heger types and the related Wanjiaba/Shizhaishan series), known from surviving instruments and burial contexts. Living Mường Heger II rite (Muong bronze drum) is the named continuation of use in the same hill populations. Hood’s drum→gong→Munggang story leftover as the old hypothesized hop onto Javanese gamelan; later work doubts the empty centuries, and the edge is not drawn. Wanjiaba leftover as a contested earlier type inside this same drum complex, not a second parent. Highland Tai/Karen display leftover as later object-use of drums, not the Mường school. It is not a court gamelan, not a leftover “Asia” bin, and not Chinese Yayue. Nhã nhạc leftover as a later Vietnamese court job that hears yayue, not these drums.