Shōgun: The Musical is a musical with a book and lyrics by and music by Paul Chihara. Based on James Clavell's 1976 novel and the 1980 television mini-series of the same name based on it, the musical centers on shipwrecked English sea captain John Blackthorne, who finds himself drawn into a political power play while involved in an illicit affair with a married noblewoman in 17th-century Japan. Clavell's novel was itself originally inspired by the true story of English navigator William Adams.