Crystal Bloom
Blow or hum, and grow a tower of singing crystal bells tuned to pure harmonic ratios — a glassy, beating-free chord unlike any piano.
Then blow or hum into the mic — or press and hold the bells.
Design notes
Every bell is tuned to a pure integer frequency ratio above one low fundamental (A2, ~110 Hz). Because the ratios are exact small fractions (5/4, 3/2, 5/3 …) the partials of stacked bells phase-lock — there are no beats, no roughness. That glassy stillness is the whole point, and it is something a 12-tone equal- tempered piano physically cannot produce.
INPUT: microphone loudness (RMS envelope) · OUTPUT: animated inline SVG · TECHNIQUE: just-intonation additive bell synthesis · See the folder's README.md for the full tuning table and references (Harry Partch; Scale Workshop & Tune.js; the purified-synth / “Pure Intonation” sequencer, RubyKaigi 2026).