While my wife and were in Vegas we had the chance to listen to the Tibetan Singing Bowls being played.
While we were there in the "Zen Room" of a natural healing type of a shop, the owner explained to us about what the bowls were and what they were used for. These specific bowls were carved out of a single piece of quartz crystal and that is how they are able to achieve the different frequencies. She said that the different frequencies opened up your different chakras and healed them.
It was a pretty cool experience.
