Glinka is commonly regarded as the founder of Russian nationalism in music. His influence on Balakirev, self-appointed leader of the later group of five nationalist composers, was considerable. As a child he had some lessons from the Irish pianist John Field, but his association with music remained purely amateur, until visits to Italy and in 1833 to Berlin allowed concentrated study and subsequently a greater degree of assurance in his composition, which won serious attention both at home and abroad. His Russian operas offered a synthesis of Western operatic form with Russian melody, while orchestral music, with skilful instrumentation, offered a combination of the traditional and the exotic. Glinka died in Berlin in 1857. Glinka‘s first Russian opera, A Life for the Tsar, was well received at its first staging in 1836. His second full opera, Ruslan and Lyudmila, with a libretto by Pushkin, proved less acceptable at its first staging in St. Petersburg in 1842. The Overtures to these operas make effective curtain-raisers. Travel abroad inspired the Spanish mood of Jota aragonesa, a Capriccio brillante also known as the First Spanish Overture. The second of the series was expanded from Recuerdos de Castilla, Souvenirs of Castile, into Souvenir d‘une nuit d‘ete a Madrid (Memory of a Summer Night in Madrid). Kamarinskaya, written in Warsaw, uses Slav thematic material.