Gamelan with male groups. In the twenty-five countries outside Indonesia that have gamelan, music performed in a concert context or as part of ceremonies for expat communities may also accompany dance or "wayang". The tuning and construction of a gamelan orchestra is a complex process. Javanese gamelan use two tuning systems: "sléndro" and "pélog". There are other tuning systems such as "degung" (exclusive to Sunda, or West Java), and "madenda" (also known as "diatonis", similar to a European natural minor scale). In central Javanese gamelan, "sléndro" is a system with five notes to the octave, with large intervals, while "pélog" has
Gamelan Surakarta although the pattern it plays for the balungan is often the same, in the Yogyanese style it is rhythmically shifted earlier, creating a different emphasis in relation to the balungan. Gamelan Surakarta A typical large, double gamelan in contemporary Solo (Surakarta) will include, in the sléndro set, one saron panerus (or saron peking), two saron barung, one or two saron demung, one gendér panerus, one gender barung, one slenthem (or "gender panembung"), one bonang panerus and one bonang barung (each with twelve gongs), one gambang kayu, one siter or celempung, one rebab, one suling, one pair of kethuk and kempyang,