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
American Gamelan Institute around the world. The directories for North America (Canada and the U.S.), are maintained by Barbara Benary. In the early 1990s, AGI produced three gamelan festivals called "Planet Gamelan." The American Gamelan Institute is the publisher of all gamelan works by the American composer Lou Harrison, who built gamelan instruments with his partner William Colvig. American Gamelan Institute The American Gamelan Institute (AGI) is an organization devoted to promoting and documenting all forms of gamelan, the performing arts of Indonesia, and their international counterparts. The Institute was founded in Berkeley, California in 1981; the office moved to New Hampshire in