In 1954, Borkh appeared in Rio de Janeiro; in the same year she performed at the Florence Maggio Musicale as Eglantine in Weber's Euryanthe, conducted by Carlo Maria Giulini, and in 1955 at the Salzburg Festival, as Cathleen in the premiere of Egk's Irische Legende.
In 1954, Borkh appeared in Rio de Janeiro; that same year she performed at the Florence Maggio Musicale as Eglantine in Weber's Euryanthe under the direction of Carlo Maria Giulini, and in 1955 at the Salzburg Festival, as Cathleen in the premiere of Egk's Irische Legende.