Gamelan outside Indonesia gave a new impetus to the performance of gamelan and Javanese dance in the Netherlands. Together with Mr and Mrs Ronosuripto, the Amsterdam Gamelan group played many concerts and performances with Javanese dance and shadow puppetry (wayang kulit). Rien Baartmans, who as a child had been taking lessons from Bernard IJzerdraat, studied wayang and kendhang with Pak Ripto, which very much stimulated his own group Ngesthi Raras in Haarlem. In 1978 the new gamelan society Naga, founded by Rob van Albada, acquired a gamelan from Solo. This gamelan was used by several groups, performing traditional and modern music for gamelan.
Gamelan outside Indonesia style steel slendro pelog gamelan, and a Javanese slendro bronce gamelan, both owned by the Embassy of Indonesia in Mexico City; and gamelan Asep Mangsa, a Javanese pelog gamelan, and gamelan Barudak, a Sundanese degung gamelan, both owned by Indra Swara. The first gamelans outside of Indonesia were in the Netherlands, the country which had colonized the islands. Before World War II, the Javanese dancer Jodjana had a small gamelan group in the Netherlands, which accompanied his performances. He had to train Dutch musicians. Early during the war, the resistance fighter Bernardus IJzerdraat was killed by the Germans. His son