Excellent production of one of the grandest, most challenging operas of them all, as only (probably) the Met could do it. A revival of the 2003 production, with excellent performances by Deborah Voigt (Cassandra), Bryan Hymel (Aeneas), and Susan Graham (Dido). This was the encore (on January 23rd) of the live telecast (from January 5th), so, although I rate it "GO," you may have to look for it on PBS as one of its Great Performances telecasts. Music and libretto is by Hector Berlioz, based on Virgil's Aeneid. Five acts with two intermissions, running almost five and a half hours. (Then there's Wagner's "Gotterdammerung"!)