Jon Hassell bụ onye egwu America ama ama na onye na-ede egwú. Onye America na-ede egwú avant-garde, ọ ghọrọ onye a ma ama maka ịmepụta echiche nke egwu "ụwa nke anọ". Karlheinz Stockhausen na onye na-eme ihe nkiri India bụ Pandit Pran Nath nwere mmetụta dị ukwuu na mmepe nke onye na-ede egwú. Oge nwata na oge uto Jon Hassell A mụrụ ya na Maachị 22, 1937, n’obodo […]