Earth's rhythms and your own
Long before clocks, people lived by rhythms they could feel: the sun coming up, the tide going out, the Moon filling and emptying. Those rhythms haven't gone anywhere. We still feel them, even if a phone tells us the time.
The day inside you
Your body keeps its own day, a little over twenty-four hours long, called the circadian rhythm. Morning light is the strongest signal it follows, which is why a late night in front of a bright screen can leave you wide awake. The work that showed how this inner clock is built won the Nobel Prize in 2017. Most of us know the feeling without knowing the science: jet lag, Sunday-night insomnia, the slump after lunch.
The rhythms you can count
Some rhythms are close enough to count. A resting heart beats about once a second. A calm breath comes about a dozen times a minute. The Earth itself has a pulse, too: the Schumann resonance, about 7.83 times a second, set ringing by lightning around the planet (the note on the numbers). People have long enjoyed the idea that these rhythms, large and small, run side by side.
The longer cycles
The Moon takes about twenty-nine and a half days from one new moon to the next; the Earth takes a year to go round the sun. Many traditions mark both — new-moon intentions, solstice gatherings, a fresh start each spring. Some sound traditions go further and turn these cycles into tones you can hear: the Earth's year becomes 136.1, the Moon's month about 210.42.
Sessions that follow the clock
If you like to work with these rhythms, the site has places to start:
- Evening and night: the Essentials group Sleep & Rest, which opens with the day–night rhythm itself (Residual Circadian Distortion Resolution); the Rife Sleep presets
- Morning: the Rife Wake presets
- Earth and sky: Natural / Earth — Circadian Reset, Schumann Fundamental, Grounding, Earth Cycle and Lunar
A simple habit many people enjoy is the same session at the same time each day — a little ritual of its own, like the cup of tea before bed.
Notes describe how the site works and how to listen. They are not medical advice; a sound session is not a treatment.