頭鑼 [头锣]

Jyutping tau4 lo4
Pinyin tóu luó

Definitions (CC-CANTO)
  1. the opening gongs and drums; the lead
Definitions (粵典–words.hk)
  1. 名詞
    開​場​嘅​敲​鑼​儀​式
    the opening ceremony of which people hit the gong