timbre

US /ˈtæm.bɚ/
UK /ˈtæm.bɚ/
"timbre" picture
1.

the character or quality of a musical sound or voice as distinct from its pitch and intensity

:
•
The unique timbre of her voice made her stand out in the choir.
•
Different instruments have distinct timbres.
:
tonequalitycolorresonancecharacter