Meinl SOLCSB10-417 Sonic Energy Solfeggio Crystal Singing Bowl - 10" (Note G#4)The white frosted Meinl Sonic Energy Solfeggio Crystal Singing Bowls are made using ancient frequencies. Solfeggio frequencies are vibrations of sounds that are said to have a healing and health promoting effect on our body, mind, and soul. Already in ancient times these frequencies were known and used for the treatment of physical and psychological diseases. For example, monks used these historical frequencies in their Gregorian chorales and saw a