What are Solfeggio Frequencies?
They are considered “sacred musical scales” that were also used in ancient Gregorian chants. Each frequency is said to have its own unique healing and consciousness-transforming effects.
Frequency | Effect/Meaning (as believed) |
174Hz | Pain reduction, sense of security |
285Hz | Repair of energy fields, cellular revitalization |
396Hz | Liberation from fear and guilt |
417Hz | Facilitating change, healing trauma |
528Hz | DNA repair, frequency of love |
639Hz | Relationship repair, strengthening connections |
741Hz | Detoxification, activation of intuition |
852Hz | Spiritual awakening, connection with higher self |
963Hz | Cosmic consciousness, oneness with God |
Tesla and the “3, 6, 9” Law

Nikola Tesla said: “If you only knew the magnificence of the 3, 6 and 9, then you would have a key to the universe.”
If you break down and add the digits, all Solfeggio frequencies converge to 3, 6, or 9. This is said to symbolize the harmony, order, and cyclical nature of the universe.
Strictly speaking, the “3, 6, 9 Law” and “Solfeggio Frequencies” are separate concepts. Solfeggio frequencies have the curious characteristic that if you add all their digits, they result in 3, 6, or 9.
Frequency | Calculation Example | Sum |
174Hz | 1+7+4=12→1+2 | 3 |
285Hz | 2+8+5=15→1+5 | 6 |
396Hz | 3+9+6=18→1+8 | 9 |
417Hz | 4+1+7=12→1+2 | 3 |
528Hz | 5+2+8=15→1+5 | 6 |
639Hz | 6+3+9=18→1+8 | 9 |
741Hz | 7+4+1=12→1+2 | 3 |
852Hz | 8+5+2=15→1+5 | 6 |
963Hz | 9+6+3=18→1+8 | 9 |
And what’s interesting is…
If you add all of these together, 4995 → 4+9+9+5 = 27 → 2+7 = 9. This means that even as a whole, it converges to the cosmic number “9.”
“440Hz = Unpleasant Frequency” Theory
The standard musical pitch used in music worldwide today, A (La) = 440Hz, was adopted as an international standard in 1939 and is now used as a matter of course. However…
“440Hz is unnatural and causes discomfort and tension in humans.” “Ambulance and police car sirens are also based on this frequency.”
Many people who listen to “432Hz vs 440Hz comparisons” on YouTube, etc., feel that “432Hz is softer and more pleasant.” It’s said to have static vibrations that disrupt communication between DNA and cells, making the body prone to various abnormalities.
Frequency | Characteristics | Perceived Effect |
440Hz | Modern standard pitch. Some find it tense. | Warning, modern/artificial sound |
432Hz | Ancient tuning. Harmonizes with nature. | Healing, sense of security, resonance |
Recommended Listening Methods
- During morning meditation or stretching.
- As background music for studying or working.
- For relaxation before sleep.
Search for “432Hz” or “Solfeggio Frequencies” on YouTube or Spotify, etc., and try incorporating the sounds that interest you for at least 10 minutes a day.
However (^^;;
On video platforms like YouTube, the waveform and frequency of the original sound source can subtly change during audio compression and encoding. This means the original music’s Hz might be altered.
Especially for sound sources that prioritize high quality (e.g., high-resolution audio or music designed with a delicate frequency balance like Solfeggio frequencies), you might feel a difference depending on the playback device, internet connection, and video settings. Someone might be adjusting the Hz and uploading if they can calculate it around here.
If You Seriously Want to Feel the Effects of Solfeggio?
It is recommended to listen to high-quality sound sources (WAV, FLAC, etc.) available for download, using low-noise speakers or headphones in a relaxing environment. Ideally, records would be best, but…
Please do some searching and find your favorite frequencies! ↓ For reference
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