American gamelan music. Lou Harrison and William Colvig, who met in 1967 in San Francisco, built a set of tuned percussion instruments that they called "an American gamelan" in order to differentiate it from Indonesian ensembles. It was first used in Harrison's work "La Koro Sutro" in 1972. These are now referred to as "Old Granddad", and Harrison wrote some pieces that can only be played on this set, including "La Koro Sutro". Lou Harrison spent some time with a Javanese gamelan in 1976 (when Kyai Udan Mas, now at the University of California, Berkeley, was in residence at San Jose State
Gamelan in Central Javanese villages. Gamelan is also related to the Filipino "kulintang" ensemble. The variety of gamelan can befound in over 25 countries outside Indonesia, presenting both traditional and experimental repertoire. In oral Javanese culture distinctions are made between complete or incomplete, archaic and modern, and large standard and small village gamelan. The various archaic ensembles are distinguished by their unique combinations of instruments and possession of obsolete instruments such as the bell-tree ("byong") in the 3-toned "gamelan kodhok ngorek". Regionally variable village gamelan are often distinguished from standard gamelan (which have the "rebab" as the main melodic instrument) by