La Cieca’s saturation coverage of the Met’s new Contes d’Hoffmann begins officially on Monday, when one of her most reliable and most devious spies promises a report from the dress rehearsal. You, the cher public, will be expected to sound off loud and clear during the opening night chat on Thursday at 8:00 pm.   And, ça va sans dire, one of parterre’s crack team of critics from the New York beat will file a definitive review just as soon after the final curtain as his little paws can type. In the meantime, here’s a teensy preview of the show: