Iemoto in the context of "Sōke"

Noh (能, Nō; Japanese pronunciation: [no(ꜜ)ː], Sino-Japanese for "ability") is a major form of classical Japanese dance-drama that has been performed since the 14th century. It is Japan's oldest major theater art that is still regularly performed today. Noh is often based on tales from traditional literature featuring a supernatural being transformed into a human hero who narrates the story. Noh integrates masks, costumes and various props in a dance-based performance, requiring highly trained actors and musicians. Emotions are primarily conveyed by stylized conventional gestures while the iconic masks represent specific roles such as ghosts, women, deities, and demons. Having a strong emphasis on tradition rather than innovation, Noh is highly codified and regulated by the iemoto system.

Although the terms Noh and nōgaku are sometimes used interchangeably, nōgaku encompasses both Noh and kyōgen. Traditionally, a full nōgaku program included several Noh plays with comedic kyōgen plays in between; an abbreviated program of two Noh plays with one kyōgen piece has become common today.