Positioned on the floor of her studio, Sound Space, are 10 quartz crystal bowls, lighted violet from within. Ford improvises, based on her instinct about what the group needs or how we might respond.

The singing bowls that Baker uses are made from very pure quartz crystal. She creates sustained tones using eight bowls that range in size from 7 inches to 14 inches wide.

Before she moves away, Conroy and Peter Olsen will attempt to mesmerize the audience one last time with the sounds made by the quartz bowls. Admission to Sunday's concert is $15.

These large quartz crystal bowls are “played” in a circular motion with a mallet-sort of like rubbing a finger around a wine glass.

Crystal expert Patrick Gundersen recently found a priceless quartz hidden in the dirt of Australia's Northern Territory. The crystal hunter said he does not intend to sell the gem.

Singing bowls are made out of metal alloys, often copper and brass, similar to church bells. Some singing bowls are also made out of quartz crystal.

Crystal singing bowls “Quartz bowls produce tones for chakra balancing and deep meditation,” says Huskinson.