Sion Kazu / Singing Ring® Developer, Sound therapy instructor.

Sion Kazu / Singing Ring® Developer, Sound therapy instructor.Representative Director of Singing Ring Association, Councillor of International Society for Personalized Medicine. Graduated from Shizuoka University Graduate School, Sophia University Counselling Institute, Master of Education. 

After working as a clinical psychologist and psychological counsellor, she lived in Los Angeles and New York for eight years, experiencing her eldest daughter's illness and 9/11 there before returning to Japan. In December 2004, she developed the healing instrument Singing  Ring® Shikkoku that plays the ultimate harmonic overtone. She has also created original sound therapy using miraculous resonance phenomena and is committed to training therapists and performers both in Japan and overseas. In 2019, she announced the world's first lapis lazuli colour Singing Ring® Luli using lapis lazuli and Urushi lacquer. Her academic research with universities has also recognized its miraculous sound effects, contributing to the well-being of the body, mind of many people.
Original CDs: "Divine Sound",  "Sound Myth"

Books: "Full Harmonic Overtone Therapy CD Book" (BAB Japan), "Full Harmonic Overtone Therapy that Boosts Immunity Just by Listening" (Forest Publishing), and others.