Origins Gamelan was originally adapted from Hindu-Buddhist culture that was introduced to the Javanese during Majapahit Dynasty.
They frequently play Gamelan in Kecak theatrical dance, religious ceremonies, in music and in art performances. Radio Republik Indonesia RRI employs professional studio musicians and broadcasts a wide range of gamelan music. Avant-garde composer Harry Partchone of America's most idiosyncratic composers, was also influenced by Gamelan, both in his microtonal compositions and the instruments he built for their performance  In jazz, the music of Don Cherryespecially his record Eternal Rhythm, shows influences of gamelan music.
See Article History Alternative Titles: gamelang, gamelin Gamelan, also spelled gamelang or gamelin, the indigenous orchestra type of the islands of Java and Baliin Indonesiaconsisting largely of several varieties of gongs and various sets of tuned metal instruments that are struck with mallets. The other parts are created in real time, and depend on the knowledge each musician has of his instrument, and his awareness of what others are playing; this "realization" is sometimes called "garap.
These two gongs were then claimed as the initial model of a Gamelan set. You have to preserve gamelan as one of the national cultural heritage. Most Indonesians today have embraced this ancient musical form as their national sound. And almost all elementary schools in Singapore have gamelan.
More percussive items were added to send out different messages to the gods, resulting in a full set of instruments.