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
Indonesian art "[[gambuh]]" and "[[topeng]]", Javanese "[[wayang wong]], [[ketoprak]]" and "[[ludruk]]"; Betawi "[[lenong]]"; Sundanese "[[sandiwara]]"; also colonial "[[toneel]]". [[File:Wayang Kulit - Museum Wayang 02.jpg|thumb|right|Indonesian Javanese "[[wayang kulit]]" shadow puppet.]] "Wayang" refer to a theatrical performance with puppets or human dancers. When the term is used to refer to kinds of puppet theatre, sometimes the puppet itself is referred to as "wayang." Performances of [[Shadow play|shadow puppet]] theatre is known as "wayang kulit", are accompanied by a "[[gamelan]]" orchestra in [[Java (island)|Java]], and by "[[Gamelan gender wayang|gender wayang]]" in [[Bali]]. It has been developed into a complete and refined artform, especially in Java