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 Surakarta although the pattern it plays for the balungan is often the same, in the Yogyanese style it is rhythmically shifted earlier, creating a different emphasis in relation to the balungan. Gamelan Surakarta A typical large, double gamelan in contemporary Solo (Surakarta) will include, in the sléndro set, one saron panerus (or saron peking), two saron barung, one or two saron demung, one gendér panerus, one gender barung, one slenthem (or "gender panembung"), one bonang panerus and one bonang barung (each with twelve gongs), one gambang kayu, one siter or celempung, one rebab, one suling, one pair of kethuk and kempyang,