The Solfeggio Frequencies are tones thought to possess special qualities such as awakening intuition or manifesting emotional and physical healing. According to Healing Codes for the Biological Apocalypse, author Leonard G. Horowitz described these tones as forgotten, but revealed to him, hidden in plain sight by way of old Gregorian chants, religious texts, and sacred geometry.

The six Solfeggio frequencies, according to Horowitz:

Frequency	Sound	Quality
396Hz	Ut	Liberating Guilt and Fear
417Hz	Re	Undoing Situations & Facilitating Change
528Hz	Mi	Transformation & Miracles (DNA Repair)
639Hz	Fa	Connecting/Relationships
741Hz	Sol	Awakening Intuition
852Hz	La	Returning to Spiritual Order

Since the publication of his book, the addition of a few other frequencies that share the same mathematical principals have emerged in the popular culture and have been wedged into the solfeggio system. Some of the more common frequencies I’ve seen are 174Hz, 285Hz and 963Hz: as they are not part of the hexachord structure of the hymn, they do not have associated sounds.

Frequency	Sound	Quality
174Hz	–	Anesthetic, relieves physically and energetic pain
285Hz	–	Rejuvenate mind, body, and spirit
963Hz	–	Crown chakra, universal connection

Students of music can tell you about solfège, a system in which every note of a scale is given its own unique syllable in order to teach sight-reading by sounding the syllable every time it appears. The sounds associated with the Solfeggio Frequencies are derived from the first syllable in each stanza in the Gregorian chant “Ut queant laxis”, a Latin hymn in honor of John the Baptist.

Sound	Latin	English Paraphrase*
Ut	Ut queant laxīs	Do let our voices
Re	resonāre fibrīs	resonate most purely,
Mi	Mīra gestōrum	miracles telling,
Fa	famulī tuōrum,	far greater than many;
Sol	Solve pollūtī	so let our tongues be
La	labiī reātum,	lavish in your praises,
—	Sāncte Iōhannēs.	Saint John the Baptist.

“Solfeggio Frequencies are effective because of subtle differences in tunings. They jolt our brains into perceiving something foreign. They are inherently exotic and at times ‘alien’ relative to what we are used to…”

J.S. Epperson, S2E10 Transcendent Sounds on
Mystery Teachings with Theresa Bullard
Gaia.com

Album	Delta	Theta	Alpha	Beta	Gamma
Aurora		✓	✓		✓
Deltadream	✓
Hibernation	✓
Solfeggio Cycle		✓
Solfeggio Suite		✓