The spectrum of the higher-pitched frequencies that accompany the fundamental of any pitch and determine its tone color (also called harmonic or partials).
higher resonant frequencies produced above a fundamental. Different combinations of overtones in voices or musical instruments allows the sounds to be distinguishable.
Tones of higher pitch that are present in every musical sound and whose presence determines the quality of the musical sound. Chords locked in tune and proper volume relationship "ring" with reinforced overtones.