The Phantom of the Opera is a musical with music by Andrew Lloyd Webber and lyrics by Charles Hart with additions from Richard Stilgoe. Lloyd Webber and Stilgoe also wrote the musical's book together. Based on the French novel Le Fantôme de l'Opéra by Gaston Leroux, its central plot revolves around a beautiful soprano, Christine Daaé, who becomes the obsession of a mysterious, disfigured musical genius.