list, I agree that perfect pitch is about frequency recognition/identification by human ear. I personally believe everyone has this ability. Consider dogs who are "color blind" with respect to human. And dogs still can be trained to recognize color! Maybe "we" are "hearing blind" with respect to dogs, who knows? Just as trained dogs can identify colors by its darkness or lightness, some of us can identify (range of) frequencies of audible sound. Sound and light are actually not that different from each other (except they travel differently at same speed). Different colors of light are of different frequecy and different pitches of sound are of different frequency. So, do we have "perfect color" or "perfect sight"? I don't know, you decide for yourself :) Kuang Wang
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