What are 528 Hz and the solfeggio frequencies?
A clear explanation of 528 Hz, 432 Hz and the solfeggio frequencies (174–852 Hz): what people use them for, what the evidence says, and how to listen.
The short answer
- Solfeggio frequencies are a set of tones — commonly 174, 285, 396, 417, 528, 639, 741 and 852 Hz — used in relaxation and meditation music.
- 528 Hz is often called the “love frequency”; 432 Hz is a tuning some listeners find warmer.
- Scientific evidence for specific health effects is limited. Treat them as a calming listening practice, not medicine.
Where the idea comes from
The modern solfeggio frequencies were popularised in the 1970s and 1990s and linked to a medieval hymn whose syllables (ut, re, mi, fa, sol, la) gave the scale its name. Today they are mostly used in ambient and meditation music.
The common frequencies
These associations come from tradition and listener experience rather than clinical research.
- 174 Hz — often used for grounding and deep relaxation.
- 285 Hz — associated with renewal.
- 396 Hz — associated with letting go of fear and guilt.
- 417 Hz — associated with change and moving forward.
- 432 Hz — not a solfeggio tone, but a popular alternative tuning described as warm and natural.
- 528 Hz — the “love frequency”, used for calm and positivity.
- 639 Hz — associated with connection and relationships.
- 741 Hz — associated with clarity and expression.
- 852 Hz — associated with intuition.
What the evidence says
There is good evidence that calm music in general can lower stress and help people relax. Research on specific frequencies like 528 Hz is small and early, so claims about repairing DNA or curing illness are not supported. If a frequency track helps you feel calmer, that is a perfectly good reason to listen.
How to listen
- Use headphones at a low, comfortable volume.
- Pair it with something: breathing, journaling, reading or falling asleep.
- Try a few frequencies over a week and keep the ones you return to.
Frequencies in Aflora
Aflora’s library has ambient tracks at 174, 285, 396, 432, 528, 639, 741 and 852 Hz, each with its own soundscape, so you can settle into whichever feels right for the moment.
Questions
Is 528 Hz scientifically proven?
No strong scientific evidence shows that 528 Hz has specific healing effects. Relaxing music in general can reduce stress, which is why many people still enjoy listening.
Can I listen to frequencies while sleeping?
Yes, at a low volume. Many people use frequency or ambient tracks as a calm background for falling asleep.