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 instruments are indeed included in a complete gamelan orchestra. Musical instruments such as the bamboo flute, bells, drums in various sizes, lute, and bowed and plucked string instruments were identified in this image. However it lacks metallophones and xylophones. Nevertheless, the image of this musical ensemble is suggested to be the ancient form of the gamelan. The instruments developed into their current form during the Majapahit Empire. According to the inscriptions and manuscripts dated from the Majapahit period, the kingdom even had a government office in charge of supervising the performing arts, including the gamelan. The arts office oversaw the