Canadian soprano Joyce El-Khoury, in the role of Elisabetta, gives a thrilling performance, showing herself visibly emotional at the curtain call. I can see her taking on the mantle of Beverly Sills and performing all three of Donizetti’s Tudor queens. Her mastery of the coloratura, her expression in the messa di voce and her sheer intelligence as a singer all shone out from her first imperious entry to the unbridled passion of her final aria.