Hi,
Am octave is just a doubling of frequency. The ear can pick up a span of TEN of those doublings! The eye: only a bit less than one doubling. Color perception is a frequency based phenomenon, just as sound is frequency based. Eyes pick up an electromagnetic wave, ears pick up a mechanical wave. But look how much wider the range of our perception is with sound!
Am octave is just a doubling of frequency. The ear can pick up a span of TEN of those doublings! The eye: only a bit less than one doubling. Color perception is a frequency based phenomenon, just as sound is frequency based. Eyes pick up an electromagnetic wave, ears pick up a mechanical wave. But look how much wider the range of our perception is with sound!