I was in Moscow in December, 1981 and I attended The Nutcracker at the Bolshoi Ballet one evening. I wonder if it was the same performance that you saw.
As the Cold Warriors hoped and worked for, communism as the dominant political force is gone from Russia, but Christianity is still there.
Cathedral of Christ the Savior, Moscow. Originally built in 1881, razed on Stalin's orders in 1931, rebuilt after Communism fell.