Fischer-Dieskau made guest appearances at the opera houses in Vienna and Munich. After 1949 he made concert tours in the Netherlands, Switzerland, France and Italy. In 1951, he first appeared at a concert in the Salzburg Festival with Mahler's "Lieder eines fahrenden Gesellen (Songs of a Wayfarer)" under Wilhelm Furtwängler. He was starting to appear all over the world: in the Royal Albert Hall, London, Boston, Massachusetts and at the Bayreuth Festival.