Every sound derived from cardiac physics. No arbitrary musical choices.
S1 (lub) resonates at 36 Hz. S2 (dub) at 54 Hz. Their ratio: 3:2 — a perfect fifth.
The heart's two sounds define the most consonant interval in music.
Melody follows the ECG voltage contour: P-wave, QRS spike, T-wave resolution.
All harmony from the overtone series of these two frequencies.
Rhythm from systole:diastole = 3:5, close to the golden ratio.
S1=36Hz (D) · S2=54Hz (A) · ratio=3/2=perfect fifth
overtone series: H4=144(D) H5=180(F♯) H6=216(A) H7=252(♭7) H8=288(D) H9=324(E) H10=360(F♯)
cardiac scale: D E F♯ A — pentatonic from harmonics 8,9,10,12
ECG melody: P→E(H9) · R→D'(H16) · T→F♯(H10) · systole:diastole ≈ φ
CRR Framework — Alexander Sabine · temporalgrammar.ai
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