 During that time, he continued his voice training with Renata Carisio Booth, who had been his teacher since his school days.He made his solo opera debut in 1976 at the Kennedy Center in Washington D.C. as Lindoro in Rossini's "L'italiana in Algeri", and made his debut at the New York Metropolitan Opera House in 1981 in the same role, with Marilyn Horne as his Isabella.He went on to become one of the leading Rossini singers of his generation, singing regularly at the Rossini Opera Festival in Pesaro since his debut there in 1983.