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 outside Indonesia named Kyai Udan Mas, or Venerable Golden Rain. The Indonesian Embassy in Washington, DC hosts another Javanese gamelan, as well as offering classes in Balinese gamelan and various styles of Indonesian dance. Canada's oldest gamelan is the Toronto-based Evergreen Club Contemporary Gamelan (with Sundanese degung instruments), founded in 1983. Another early gamelan ensemble is Kyai Madu Sari (Venerable Essence of Honey), donated by the Indonesian Government after the 1986 Expo in Vancouver, which resides since then at the School for the Contemporary Arts at Simon Fraser University. A gamelan gadhon, Alligator Joy, was commissioned from Pak Tentrem of Solo, Central