A grounded guide to sound & tuning
Solfeggio frequencies, explained — without the hype.
A set of tones, each commonly associated with a particular feeling or theme, plus 432 Hz tuning. Here you can learn what they are, where the ideas come from, what research actually shows, and listen for yourself. No medical claims — just a clear, honest place to start.
So, what are they?
“Solfeggio frequencies” are a group of specific sound tones — measured in hertz (Hz), the unit of pitch. Six of them trace back to a medieval musical scale; three more were added by modern sound-healing writers. Each tone has come to be associated with a theme — grounding, letting go, connection, clarity, and so on.
People listen to them during meditation, rest and focus, and many describe feeling calmer. What the science can and can’t say about that is genuinely interesting — and we lay it out plainly rather than overselling it. Think of this site as a reference you can trust.
Read the full introduction →The reference
Explore each frequency
Open any tone to hear it, learn where its association comes from, and read what studies actually found.
- 174 Hz Pain & Stress Relief Commonly associated with a sense of physical grounding, ease and stress relief.
- 285 Hz Tissue & Organ Healing Traditionally associated with restoration and a feeling of physical wholeness.
- 396 Hz Releasing Fear & Guilt Commonly associated with releasing fear, guilt and a sense of being stuck.
- 417 Hz Clearing Negativity Commonly associated with clearing negativity and facilitating change.
- 432 Hz Miracle Tone of Nature Often described as warmer, calmer and more natural than the 440 Hz standard.
- 528 Hz The Love Frequency Popularly called the “Love” or “Miracle” tone and associated with transformation.
- 639 Hz Love & Relationships Commonly associated with connection, relationships and harmony with others.
- 741 Hz Detox & Expression Traditionally associated with self-expression, problem-solving and “clearing”.
- 852 Hz Intuition & Clarity Commonly associated with intuition, awareness and returning to inner order.
- 963 Hz The Higher Self Traditionally associated with connection to the higher self and expanded awareness.
Where we stand
Honest about the evidence
We think you deserve the real picture. A handful of small studies have found modest, genuinely measurable effects — lower cortisol, a slightly slower heart rate — but the research is early and limited, and much of what circulates online overstates it. We describe what each tone is associated with, link the actual studies, and let you decide.
See the research & studiesIf you’d like to go further
Listen to your own music this way
Beyond pure tones, some people like to hear the music they already love retuned to 432 Hz or a Solfeggio tuning. We make a family of apps for that — browse them whenever you’re ready.