(Photo: ©-Sebastien-Mathe) After the Théâtre des Champs-Elysées’s “Werther,” it is now the turn of the Opéra National de Paris to stage a Massenet opera in Paris this year. It is reviving its production of “Manon,” directed by Vincent Huguet. Massenet wrote a grand French opera with its obligatory ballet in the second act. Nevertheless, the sensuality of his melodic line, {…}