Singing bowls, which became identified with Tibet, were actually found there by the Buddhists who arrived after Gautama Buddha's departure in 600 BCE. At that time the singing bowls were shrouded in mystery and sounded primarily for religious and magical purposes by the Bon Pot Shamans. It is believed that these shamanic practitioners were the sacred metallurgists, and included 'recitation of mantric formulas'
These ancient artisans of earth magic are thought to have been the ones who originated the method of rimming the bowls with a wooden wand for purposes in their ceremonies. The striking style of sounding in Buddhist tradition, between silent meditations, or upon entering and leaving a temple may also have been used.
Singing Bowls are manufactured with using different kind metals depends up on requirement if by hitting, striking or slowly rubbing/stirring a wooden striker/mallet within or on the top outer surface of the metal bowls, produces a continuous harmonic rimming sound. The sound quality of singing bowls depends on mixture composition of metal used, the more the metal composition, the more purity in sound, also termed as chakra balancing aura sound.
Nowadays these singing bowls is using for healing, sound massage, sound therapy and chakra balancing. These singing bowls can be found in various shape, size,designs, colors, carvings and craftings as well as with various religious motifs, themes and symbols like tibetan mantra chant Om Mani Padme Hum, Dragon Carvings and Paintings, Mandala Carvings, Asta Mangal (eight auspicious good luck symbols) Carvings, Buddha Symbols, Buddha Images mostly related with buddhist symbols and many more.
Furthermore, the manufacturing process of handmade singing bowls can be categorised into two process -
1 . Hand Hammered Singing Bowls.
2 . Casting Singing Bowls.
Hand hammered (beaten) singing bowls are very much popular for meditation, healing, sound massage and sound therapy. Whereas colored, crafting singing bowls are popular for gifts, decorations and souvenir items. Most of the hand hammered singing bowls came from Nepal, India which is manufactured in traditional process where as Colored, Hand Carved, Metal Etching and Engravings and Crafted singing bowls are mostly from Nepal.
Regarding shape and structure of singing bowls, it can be categorized into manipure flat, kopere, gulpa shape (begging bowl), height design, rounded and circular, tall and round, short and wide, flat bottom, cup shape and more with different shape and sizes.
Special type of singing bowls are manufactured with following metal proportions for better effect
8. Lead-Saturn (Plus Zinc, Nickel/Meteorite and other trace elements).
Due to the health hazards Mercury element in metal composition is replaced by using Zinc which even gives good singing sound and thus complete health safety.