HARMONIC SERIES - The "chord of nature" and basic principle of physics which, based upon the relative loudness of its separate units (partials or overtones), is the phenomenon of tone color in all music.

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harmonic series creates phenomenon timbre
harmonic series is chord of nature
harmonic series is basic principle of Physics
harmonic series contains overtones
harmonic series contains partials
harmonic series has derivation Arab timbre
harmonic series is foundation of Arab music