Solfeggio Frequencies: The Complete Guide
The Solfeggio frequencies are a set of tones derived from an ancient six-note scale used in Gregorian chants. Rediscovered in the 1970s by Dr Joseph Puleo, these frequencies have been adopted widely in sound therapy, meditation, and wellness practices.
What Are Solfeggio Frequencies?
The original six tones - 396Hz, 417Hz, 528Hz, 639Hz, 741Hz, and 852Hz - were found encoded in the Book of Numbers using Pythagorean number reduction. Three additional frequencies (174Hz, 285Hz, and 963Hz) were later added to complete the modern nine-tone Solfeggio scale.
Each frequency is associated with specific properties. While scientific validation is still emerging, the Solfeggio scale has a long tradition in sound therapy.
The Nine Solfeggio Frequencies
- 174Hz - The Foundation: Associated with pain reduction and a sense of security. Often used for grounding.
- 285Hz - Healing & Regeneration: Linked to cellular repair and tissue healing.
- 396Hz - Liberating Fear & Guilt: The first of the original six tones. Associated with releasing negative emotions.
- 417Hz - Facilitating Change: Connected to undoing challenging situations and facilitating transformation.
- 528Hz - The "Love Frequency": Perhaps the most famous Solfeggio tone. Associated with DNA repair and transformation. Research by Dr Glen Rein showed that 528Hz music increased UV light absorption in DNA by 8.2%.
- 639Hz - Connecting Relationships: Linked to interpersonal harmony and communication.
- 741Hz - Awakening Intuition: Associated with problem-solving and self-expression.
- 852Hz - Returning to Spiritual Order: Connected to awakening inner strength.
- 963Hz - Divine Consciousness: The highest Solfeggio frequency, associated with the pineal gland and universal connection.
528Hz: The Most Studied Solfeggio Frequency
528Hz has attracted the most scientific attention. A 2018 study published in the Journal of Addiction Research & Therapy found that 528Hz music significantly reduced anxiety in rats.
In practical use, many people choose 528Hz for focused work, creative sessions, and meditation.
Real-time converter tools like 432 Player support 528Hz as a direct tuning target - you can convert any song to 528Hz with a single tap.
How to Listen to Solfeggio Frequencies
There are two approaches: pure tone listening and music retuning.
Pure tones are single-frequency sine waves, typically used in sound therapy for 15–30 minutes. Music retuning converts your favourite songs to play at a Solfeggio frequency.
Several converter tools support the full Solfeggio range: for example, 432 Player's mobile app and Chrome extension offer presets for 396Hz through 963Hz, and web-based players allow fully custom input.
Explore Further
Ready to hear the difference? Learn how to convert your music to 432Hz, or browse recommended tools for every platform.