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 outside Indonesia Bernard then left home and in Amsterdam heard a group of stranded Javanese sailors play a gamelan at the Colonial Museum (later: Museum of the Tropics). He took lessons with them and soon started his own group with friends from his school in Haarlem. In this he received help from Jaap Kunst who taught him to transcribe the then existing 78 rpm recordings and who allowed him to use the beautiful antique Yogyanese gamelan set in the museum. This became Babar Layar, the first serious gamelan group in the Netherlands. Babar Layar played in Yogyakarta style, after Bernard studied one