The Solfeggio Frequency Crystal Singing Bowl Collection is a unique collection of crystal singing bowls that are all tuned in accordance with the Solfeggio Frequency Scale. Leonard Horowitz, along with Joseph Puleo, proposed a set of musical pitches in 1999, which they call "solfeggio frequencies." These pitches, claimed to originate in centuries-old Gregorian chant, are not based in any practical musical tuning, but come from a numerological manipulation of decimal representations of frequencies in cycles per second, or Hertz.
The six "original" frequencies are: 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, and 852 Hz. The number of pitches has been expanded to nine, then twelve, but the numerical system used to formulate the numbers could be extended further.
Explore the links below to see images and hear sound clips. Each Crystal Singing Bowl is crafted to be structurally resilient and is made from over 99.9 percent pure quartz crystal. Each Crystal Singing Bowl includes a rubber O-ring, which serves as a stand for the bowl, and a soft suede mallet. The suede is very high quality and is the best material to use to emit the highest quality tone from Quartz Crystal Singing Bowls.