Timbre :  (noun)

1: (music) the distinctive property of a complex sound (a voice or noise or musical sound); "the timbre of her soprano was rich and lovely"; "the muffled tones of the broken bell summoned them to meet" [syn: timber, quality, tone]

Klangfarbe, clang color, color, coloring, manner of speaking, mode of expression, mood, resonance, spirit, tonality, tone, tone color, tone of voice, tone quality, voce, voice, voice qualifier, voice quality, way of saying,