sentences:  Claudio Abbado invited her for the Verdi Requiem at La Scala, along with Plácido Domingo and Nicolai Ghiaurov.The celebrated Bulgarian bass was her partner for Massenet's freshly revived opera, "Don Quichotte", both in Paris and Chicago, the Parisian mise en scène being assigned to Peter Ustinov.In Chicago, Cortez was a commanding and electrifying Elisabetta in "Maria Stuarda" opposite Montserrat Caballé (1973).