 In 1911-12, the Bayreuth Festival's audience finally got to hear him for the first time, as Siegmund in "Die Walküre".In 1912, Urlus made his initial stage appearance in the United States of America.It took place in Boston, where he sang a Tristan in a series of performances opposite the dramatic sopranos Johanna Gadski and Lillian Nordica as Isolde.