This article (also this) proposes that there are two types of perfect pitch, “ability to perceptually encode” and “heightened tonal memory”. And these groups perform differently on a tonal matching test. I take the first to mean the ability to match any tone whatsoever precisely, while the second one to mean the ability to have long-term memory of certain heard tones.
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What exactly makes “scary” sound effects “scary”? By that I mean, what characteristics do they possess? A typical one is a high pitched, reverberated dissonant chord played on strings in certain films. Dissonance is a given, being in opposition to consonance that is often characterized as “pleasing.” But not all dissonant sounds are scary. Most are merely unpleasant, and one may even learn to enjoy them. It isn’t mental association, either, since certain sounds are intrinsically “scary,” without having been heard before. So what is it?

My best guess is, these sounds may recall the vocalization of some kind of open-range nocturnal predator of humankind’s ancestor, something one is innately equipped to recognize and fear.

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