Repairing UTF-8 that had been stored as Latin-1. The correction is mechanical, not a guess: the stored text re-encodes to exactly these bytes. name: "La Grande Prêtresse de Didon" -> "La Grande Prêtresse de Didon"

Fix encoding issue and name error (Didon to Diane). Hippolyte et Aricie has priestesses of Diana/Diane. Source: https://www.prestomusic.com/classical/products/8047487--rameau-hippolyte-et-aricie