What does sound do — to a room, a body, a mind? Cymatics, tuning systems, and the old harmonic traditions, read side by side with the physics of our time. Every idea traced to its source: measurement, tradition, or calculation.
Since ancient times, different cultures have used sound to alter emotional and physical states. Modern psychoacoustics gives us one lens on these age-old practices — here is what it sees, and what it doesn't.
What happens when each ear hears a slightly different tone — the real acoustics, the famous claims, and how to listen for yourself.