Recognized for his spotless vocal technique, honed by extensive work with the great pedagogue Mercedes Llopart (also a mentor to Renata Scotto), the Spanish tenor reached global acclaim when he sang the role of Alfredo in Verdi's La Traviata opposite the legendary Maria Callas at the San Carlos Theatre in Lisbon in 1958. He then embraced the greatest roles in French and Italian Romantic opera, while never exceeding the limits of his voice: a wise approach that granted him an incredibly long career, and a timbre that dazzled audiences well into his twilight years.