In 1915 impresario Mestres Calvet broadened the repertory and introduced composers such as Mozart, Richard Strauss, de Falla, Stravinsky, etc. It was a golden age for Russian and German operas which were now sung in their original language.
En 1915, o empresario Joan Mestres i Calvet ampliou o repertorio e introduciu autores como Mozart, Richard Strauss, Falla, Stravinskii etc. Foi unha idade dourada para a ópera rusa e alemá, que agora xa era cantada na súa lingua orixinal.