ALL ABOUT FREQUENCIES

Sound, vibration and the science of hertz

Discover what frequency means, how music notes are measured, and the traditions that have grown around particular tones.

Blue scientific neuron image
FUNDAMENTALS

What is a frequency?

Frequency describes how often an event repeats in a second. It is measured in hertz (Hz). Sound waves, electrical signals, and some types of electromagnetic fields can all be described using frequency.

Music pitches correspond to different sound frequencies, while Earth’s atmosphere has its own naturally occurring electromagnetic resonances.

User-provided musical notes and frequencies chart
MUSIC

The frequencies of music

The pitch of a musical note is related to its frequency. For example, standard concert A above middle C is commonly tuned to 440 Hz. Some musicians explore alternative tunings, such as A = 432 Hz.

The effect of listening to music can be relaxing and meaningful, but specific claims that an individual note heals a disease are not established.

TRADITIONS & EXPLORATION

Solfeggio frequencies

These tones have associations in contemporary sound-wellness traditions. The descriptions below are historical or cultural associations, not proven medical outcomes.

174 Hz

Often discussed in relation to comfort and relaxation

285 Hz

A commonly referenced Solfeggio tone

396 Hz

Traditionally associated with releasing fear

417 Hz

Traditionally associated with change

528 Hz

Often called the “love frequency”

639 Hz

Traditionally associated with connection

741 Hz

Traditionally associated with expression

852 Hz

Traditionally associated with intuition

963 Hz

Traditionally associated with contemplation

NATURAL PHENOMENA

The Schumann resonance

Lightning-generated electromagnetic activity produces resonant frequencies in the cavity between Earth’s surface and the ionosphere. The fundamental Schumann resonance is approximately 7.83 Hz.

Although this is a genuine geophysical phenomenon, direct health benefits from exposure to 7.83 Hz have not been established.

7.83 Hz

Approximate fundamental Schumann resonance

ADDITIONAL FREQUENCY SYSTEMS

Exploring the wider literature

Nogier frequencies

A set of pulse rates referenced by some light-therapy practitioners; condition-specific benefits are not established.

CAFL and Rife lists

Collections of frequencies circulated within alternative wellness communities; they should not be treated as proven disease therapies.

Musical note frequencies

Compare standard pitches and intervals, measured in hertz.

Personal sessions

Use the QBT app to organize frequencies and favorites for your compatible device.

Educational information only. Frequency traditions and personal experiences are not evidence of the diagnosis, treatment, or cure of any medical condition.