Koku Nishimura started playing the bamboo flute when he was 28 years old. He was taught by a "komuso" named Kyochiku Tani. Later, Koku Nishimura became a master flutist and founded the Tani-sect of flute players. He named the special type of bamboo flute used by himself and his pupils, "kyotaku." Koku Nishimura became a komuso and for ten years he walked around Japan and played kyotaku. He tought students from all over the world, and he has made over 2,000 kyotaku flutes. In addition to being a flute master, he was an accomplished woodcarver and painter. He had a black belt with six dan in Okinawa karate and a black belt with three dan in Kendo. In addition, he was the Honorary Director of the Ruo-yan Buddism Association in China.
Koku Nishimura Sensei lived in Kumamoto , Japan until his death in 2002.
His son Koryu Nishimura succeeded him as Sensei for Kyotaku.
He lives in Kumamoto too.
Koku Nishimura and his teacher Tani-sensei belonged to the first fluteplayers in Japan, who revived the old Kyotaku-tradition, both in playing and in making.
Apart from playing the traditional Honkyoku pieces Koku Sensei composed 16 pieces that are even more pure and very suitable for practicing sui-zen.