The document discusses the traditional musical ensembles of several Southeast Asian countries. It describes the Pinpeat ensemble of Cambodia, which usually accompanies royal and religious ceremonies and consists of nine to ten instruments similar to Thailand's Piphat ensemble. It also outlines the Gamelan orchestras of Indonesia, noting they contain various metallophones, xylophones, drums and gongs. Finally, it discusses the Hsaing Waing folk music ensemble of Myanmar, made up mainly of different gongs and drums, as well as the saung gauk harp and pattala xylophone used in more formal performances.