"Someone in a Tree", where two witnesses describe negotiations between the Japanese and Americans, is Sondheim's favorite song out of everything he has written. "A Bowler Hat" presents the show's theme, as a samurai gradually becomes more Westernized as he progressively adopts the habits and affectations of the foreigners he is meant to supervise. “Pretty Lady” is a contrapuntal trio of three British sailors who have mistaken a young girl for a geisha and are attempting to woo her. This is, perhaps, the musical fusion highlight of the show as the orchestra and lays descending parallel 4ths and the singers use a counterpoint form established during the Western Renaissance; again the chord progression is often IV to I, again eschewing Pentatonics.