The part was chanted by jiutai (noh chorus) that stayed on a stage on its own following the withdrawal of Shite (a main actor of a noh play) and hayashikata (people who play hayashi, or the musical accompaniment) after the last number.
それは最後の曲の後でシテや囃子方が退出した後、地謡だけが舞台に居残って謡われた。