During the next three years embarked on a concert tour through Italy and then acted in Buenos Aires, to return to La Scala for two more seasons before moving to New York directing the Metropolitan Opera (1908). There he continued to bet, besides the usual repertoire, for the operas of his time, and many operas were first performed in the U.S., including La Fanciulla del West (1910) or Boris Godunov (1913). He returned in 1915 to Italy and resumed his duties as a director at La Scala (1920), where they were granted powers never granted until then, thanks to which the orchestra was able to increase up to a hundred performers and form a chorus of 120 voices. In 1929 he made a triumphant tour of Vienna, Berlin and Bayreuth, but that same year were compounded their problems with the fascist regime, which led him to resign and move, without ever renouncing the Italian citizenship, back to States USA. It stands out, which was renowned for his brilliant intensity to the lead, his restless perfectionism, his phenomenal ear for detail and sounds of the orchestra and his photographic memory which gave him extraordinary control over a large repertoire which allowed him to correct errors in the orchestras that his colleagues had not noticed for decades. Remarkably, for the Argentines Toscanini jama s will be forgotten by his stay and interpretations made in this connection shvoong.com / books, review that Toscanini was impressed by Buenos Aires since the first time Buenos Aires was impressed from the first time.