 In the ensuing years Sylva sang with Hammerstein's company (until a contractual dispute ended their professional relationship), the Boston Opera Company and with the San Carlo Opera Company in the United States.She also sang in Europe, including an acclaimed 1912 performance in "Carmen" at the Berlin Royal Opera with Enrico Caruso as Don José.She continued to appear on Broadway as well, with performances in the premieres of "Gypsy Love" and "The Skylark".