The Turn of the Screw is a 1954 chamber opera by Benjamin Britten, with Myfanwy Piper’s libretto being based on Henry James’ eponymous novella of 1898. Told across a Prologue and sixteen scenes, with each of these being preceded by a variation on the twelve-note ‘Screw’ theme, it has been described as one of the most dramatically appealing of all English operas. Set in an English country house in Bly, originally in the middle of the nineteenth century, it...