Gamelan slower, more meditative quality than the gamelan music of Bali. Javanese gamelan can be made from iron or brass; instruments made of cast bronze are considered the best quality. Outside the main core on Java and Bali, gamelan has spread through migration and cultural interest, new styles sometimes resulting as well. Malay Gamelan comes from the Javanese tradition through Riau-Lingga which later formed its own distinct identity, using fewer instruments tuned in a near-equidistant "slendro", and often using a western B or C as a tuning basis. Javanese emigrants to Suriname play gamelan in a style close to that found
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