Vivaldi's music was becoming well known. During his break from teaching between 1709 and 1711 he wrote a large number of works including violin sonatas and concertos. In 1711 he wrote a collection of 12 concertos, "L'estro armonico op.3", for one, two and four solo violins was published by Etienne Roger in Amsterdam. This made him famous throughout Europe, and musicians coming to Venice would visit Vivaldi for lessons. Further new publications of his music made him even more famous. The first of his many operas, "Ottone in villa", was performed in 1713. His first oratorio, "Juditha Triumphans devicta Holofernis barbaric", was performed by the girls from the Pietà in 1716.