TIMBRE - The quality of a sound that distinguishes it from other sounds of the same pitch and volume. Tone color is determined by the loudness of individual harmonics or partials within a single tone.

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timbre has element rhythm
timbre has role in key
timbre expresses human emotion
timbre derived from harmonic series
timbre means Harmonic Profile
timbre has/have "treatment" style
timbre part of tonality
timbre element 4 of Elements of Music