“Cate Blanchett is imperious and incandescent in “Tár””                                                                                                 New Yorker Cate plays Lydia Tár (a fictional character) in Todd Field’s new movie, “Tár”, orchestra conductor, Lydia Tár, who is the first-ever female chief conductor of a major German orchestra and considered one of the greatest living composers and conductors of her time. The film…