Dialogues of the Carmelites. [music] : an opera in 3 acts and 12 scenes / Francis Poulenc ; text of the drama by Georges Bernanos, adapted to a lyric opera with the authorization of Emmet Lavery; the drama inspired by a novel of Gertrud von le Fort and by a scenario of Rev. Father Bruckberger and Philippe Agostini ; English version by Joseph Machlis