an Entity references as follows:
Nightingale: A New Musical is a musical (described by the composer as a children's opera) in one act, with book, music and lyrics by Charles Strouse. It is based on Hans Christian Andersen's 1843 fairy tale, "The Nightingale", and tells the story of a Chinese emperor who learns, nearly too late, that wealth cannot buy happiness. A cast album was released in 1985 with the London cast.