 About this time, a stroke paralyzed Gaston Salzedo, who handed over his position as synagogue music director to young Carlos.Salzedo also toured in solo performances around Europe, receiving glowing praise in the papers.In 1909, Arturo Toscanini invited Salzedo, via an agent, to play in the orchestra of the Metropolitan Opera House in New York City, and so Carlos left France for the United States of America, not knowing any English.