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What is a Perfect Pitch Crystal Singing Bowl

Clear Crystal Singing Bowl

What is the definition of a  Perfect Pitch Crystal Singing Bowl?

Perfect Pitch Crystal Singing Bowls are defined as -10 to +10 cents. '0' cents is absolute perfect pitch, relating to the modern "A440" which is the currently accepted international standard for pitch. However, most musical schools of the west state that the normal human ear does not hear the distinction below 10c of variation, so the crystal bowl industry determines that anything within +10 to -10 cents is 'perfect pitch'.