sentences:  She felt no boundaries or shyness in jumping from one composer to another, mixing Monteverdi ("L'Incoronazione di Poppea", Naples, 1976) with Giordano ("Fedora", Bologna, 1977), Stravinsky ("Oedipus Rex", La Scala, Milan, 1972, 1973, 1980) with Mussorgsky ("Boris Godunov", Paris, 1980), Rossini ("Tancredi", Martina Franca, 1976) with Lalo ("Le Roi d'Ys", Nancy, 1979).During the 1970s, Viorica Cortez went from one opera to another, across the world, singing Dalila in Paris one day, Azucena in Milan the next, and Giulietta in Chicago the following week.This intensity was about to take its toll.