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.
American gamelan East and West coasts. Following Murphy's model was Barbara Benary, who built the instruments still used today for Gamelan Son of Lion. On the West coast, the airline industry made aluminum affordable, and this became the material of choice for several gamelan builders. Daniel Schmidt, a composer-builder, built an ensemble called "The Berkeley Gamelan" (independent of the University of California, Berkeley) as well as the set of instruments that would develop into Gamelan Pacifica in Seattle. Paul Dresher also used aluminum. Harrison worked with John Cage in the 40s on percussion compositions with found metal objects, resulting in alternate scaled