Start by listening
Before any theory, I want you to listen to one bowl for sixty seconds. And I have a cue for you: endeavor to listen with every fiber of your being. Am I hearing one tone, or more than one? Are different tones ascending and decaying at different rates? Is there any modulating, any pulsing? Tell yourself that for the next sixty seconds, you have all the time in the world to simply enjoy the sound of this bowl.
There's no correct answer here. There is only your unique human capacity to notice something that perhaps no one else noticed in the same way you did. When I did this live, people noticed a rich start giving way to an intermittent pulsing. Sound that penetrated deeper. Different tonalities coming in and out. A feeling of the space around them expanding. Whatever you notice — that feeling is what this whole session exists to explain.
Demystified, not disenchanted
In this world, we tend to talk about these instruments in mystical, magical, esoteric ways — pure energy, enchantment, a feeling of being enthralled or enlivened. Those feelings are real. But the words don't explain anything. So my goal here is to demystify you for just an afternoon: what does it actually take to create these feelings inside us? What are the metals? How are they made? How does that become the forms of audible vibration we experience?
If somebody studies the physics of rockets, going to the moon doesn't become less magical for them — they just understand what makes it possible. That's what we're doing here with bowls.
Why a piano sounds like a piano — and a bowl doesn't
When a perfectly tuned guitar string is plucked, or a piano key pressed, the sound is mathematically predictable. You get the fundamental note, and every overtone above it lands at a clean integer multiple of that fundamental. Press a C and you can predict exactly what the overtone structure will be. That predictability is precisely why a piano sounds like a piano.
Now pick up one of these bowls and look closely. It's not a perfectly symmetrical sphere. You can see all the marks of the hammer inside. Run your finger along the edge and it's not a perfect 90-degree angle — the rim thickness on one side is slightly different from the other. And these objects vibrate according to their physics.
When I send energy into a bowl — strike it, invite it to sing — it vibrates in what's called a modal vibration. It squishes in and squishes out. It wavers, it undulates. And here's why handmade matters: because the bowl isn't symmetrical, the squishing in and the squishing out don't produce equal frequencies. Squish one way and you might get 250 hertz. Squish the opposite way, and because it's imperfect, you might get 255.
So when I strike this bowl, I'm not hearing a perfect-pitch C. I'm hearing 250 hertz, 255 hertz, then maybe 385, then 557, then 800-plus. Not a predictable overtone structure — something unpredictable, organic, seemingly alive.
Your brain gets to stop predicting
Our brains are pattern-completing machines. Hear the start of a familiar tune and your brain immediately races to finish it. When music is predictable, the predicting brain loves to jump ahead — and that jumping ahead is a hanging on. It keeps the analyzing part of the mind switched on.
A handmade bowl gives your brain a pattern with no end to predict. It isn't melodic in the traditional sense, so for a moment, the analyzing can stop. The ruminating can stop. That's a huge part of why people describe feeling grounded and centered listening to one bowl.
The monaural beat: a real, measurable wave
You may have heard of binaural beats. A true binaural beat works like this: play 5 hertz in your left ear and 10 hertz in your right through headphones, and your brain generates a phantom tone at the difference — 5 hertz. Through a process called entrainment, a frequency-following response, your brain waves can match that external rhythm.
Here's the incredibly cool thing about these bowls: they create a monaural beat instead. And a monaural beat is a physical sound wave — measurable. Upload the sound into a spectrum analysis and you'd see 250 hertz, 255 hertz, and a beat frequency of 5 hertz right there in the air. Not a phantom in your head. A real wave your brain can entrain to.
You can hear it if you listen closely — that wow, wow, wow modulation. The lowest tones pulse slowly; higher up, the modulation gets faster. Multiple layers of it at once.
Why does that matter? Because brain wave frequencies create different feelings in your body. Beta is everyday living — alert, working, analyzing, ruminating. Alpha is closer to light meditation, insight, deep focus. Theta and delta are the trance-like states, deep meditation, sleep. A slow physical beat gives your brain somewhere softer to go.
You don't just hear it — you feel it
All of this so far has been about sound waves. But in close proximity, you experience these instruments as physical vibration too — a form of vibrational massage. It reaches the skeletal system and the fascial system, that saran-wrap layer of connective tissue running through the whole body. Acoustic benefit and vibrational benefit, at the same time.
78% copper, 22% tin — and why sustain is the dosage
These bowls are made from a very specific recipe of bronze: approximately 78% copper to 22% tin. That ratio maxes out the best qualities of both metals. Copper brings ductility — it's why the metal sounds warm. Tin brings hardness, and hardness is what allows for sustain: how slowly the sound decays after you strike.
So we build for maximum sustain with maximum warmth — the most seconds of beneficial tone per strike.
Bronze vs. crystal
People ask me constantly about the difference between a bronze bowl and a crystal bowl, and it comes down to two things: materials and making process.
A crystal bowl is fused silica sand — extreme heat, around 4,000 degrees, and a spinning centrifugal mold. Because it's made in a sophisticated manufacturing environment, it comes out nearly perfectly symmetrical, and it can even be tuned up or down after it's made. It still vibrates in modes, but the modes match: squish in, 250. Squish out, also 250.
So instead of the complex, warm, overtone-rich structure of a hand-hammered bowl, a crystal bowl gives you nearly a pure sine wave — a tonal anchor. And because crystal has a different Q factor than bronze — a measure of how efficiently a material holds energy — it sustains even longer, with a simpler overtone structure.
We make both, and I'm an equal proponent of both. They're simply different instruments with different vibrational and acoustic signatures, and they work beautifully in complementary ways.
Then Jonathan plays
After all that heady stuff, I wanted you to re-ground in what these instruments are actually for. So I brought on Jonathan Adams — the Sonic Yogi. Classically trained musician, out there leading sessions every single week for over a decade, and the architect of the curriculum inside our Sound School. He plays a ten-minute sound bath: bowls, flute, shells, a looped crystal drone, and voice.
Afterward he walks us through exactly how he built it — and it's disarmingly simple. One B bowl as the root. An F sharp a perfect fifth above it, that restful, resolved interval. A B crystal bowl looped through a drone effect for atmosphere. Shells for a watery trickle. Some ohms over the top. One basic idea, carrying the whole ten minutes.
For his hour-long classes, he thinks in scenes — three or four ten-minute segments. Bowls to drop everyone into meditation. Then something lightly percussive, shells or an ocean drum carried around the room. Then layered rhythm on a shaman drum. Then instrumental guitar, and back down-tempo to close.
Can you mess it up?
Someone asked this directly: without much music experience, can we mess it up? Jonathan's answer: possibly — and if you do, it's okay. We can all mess up. He hit a bowl too hard in this very session. You forgive yourself and move on to the next moment. That's it.
His bigger advice: keep it simple, wherever you are — and where you are carries no value judgment. Pick one note you love and a companion note. Record yourself playing, then meditate to your own recording and ask honestly: does this feel meditative? Can I let go?
And here's my frame on it. It doesn't require skill to take one bowl, lightly tap it on its side, and experience thirty seconds of genuine relaxation. These instruments are literally made to create peaceful, grounding sound. Your job, experimenting at home, is mostly to not get in the way — just allow the instruments to sing. Our friend Ben Irons, who leads Gong School, says it best: if you aren't sure what to do next, you can actually just do nothing.
That's the magic Jonathan fell in love with in the first place — these are instruments anyone can play. Something very simple, put in the hands of so many people, inviting them into that mindful space.