Harmonic Tones, Inharmonic Tones, and Noise

Harmonic tones is a tone that produced by suppressing the fundamental tone and bringing into prominence one of its overtones. In harmonic tones, the perceived musical pitch increases by one octave for each time the fundamental frequency is multiplied by a power of 2, 4, 8, and etc,. A tone is perceived as inharmonic when its frequencies in a tone are not integer multiples of the fundamental frequency. The waves do not repeat periodically. When the frequencies of a tone does not have mathematical relationship to one another, the sound is perceived as noise.