The mystical sounds of Tibetan bells and singing bowls have already been used for years and years in Buddhist meditation and religious rites. Henry Wolff and Nancy Hennings initial encountered these musical instruments throughout a 1969 visit to India and Nepal where they researched using the Kagyu branch of Tibetan Buddhism. Since 1971, the duo continues to be releasing a refined, haunting group of recordings offering Tibetan bells, including a cooperation with Grateful Deceased percussionist Mickey Hart known as Yamantaka. Wolff and Hennings also added their skills towards the Philip Cup soundtrack for the film Koyaanisqatsi, which brought the transcendent audio from the bells to wider viewers. The uncanny resonances of the acoustic instruments create music that frequently noises electronically generated.