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🎶 Harmonic Series and Interval Roughness: Plomp-Levelt Consonance Lab

Slide the interval between two harmonic tones and watch Plomp-Levelt roughness dip at simple ratios, with partial coincidences, Euler gradus, sweep, live sound and six numerical checks.

Sound & Music2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Slide the interval between two harmonic tones and watch Plomp-Levelt roughness dip at simple ratios, with partial coincidences, Euler gradus, sweep, live sound and six numerical checks.

Harmonic SeriesConsonancePlomp-LeveltMusic Acoustics

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install