The story is proceeded by both rhythmic expressions called “Pak” and rhythmic dialogue. The Pak’s words are Karb Yani (a verse that consists of 11 syllables) and Karb Chabang (a verse that consists of 16 syllables). The dialogues and songs for KHON actors are all recited and sung by, so called, a cheracha man ( a person who speaks out the dialogues for the performers).