Betsu Kyogen indicates Sanbaso (usually written as "三番叟" in Chinese characters, except the Okura school, which writes it as "三番三"), which is one of Acts in a Noh program 'Okina' (dance performance putting on a mask of an old man), and its special version 'Furyu.'
能「翁」の一部をなす三番叟（さんばそう。大蔵流では「三番三」と書く）と、その特別演出である風流（ふりゅう）をいう。