 His career rapidly took an international dimension with debuts in 1955, at La Scala and the Glyndebourne Festival, both as Ramiro in "L'heure espagnole".Oreste in "Iphigénie en Tauride" was his debut role at the Maggio Musicale Fiorentino, the Royal Opera House in London, and the Edinburgh Festival.Massard also appeared in North and South America, notably at the Lyric Opera of Chicago, at Carnegie Hall in New York, the Teatro Colón in Buenos Aires.