Callista wrote:
It often occurs in savants. I don't know if it can be called one. It is rather rare, though, and (like the OP's ability) is the ability to judge a quantity most people can't judge just by looking at. Most people need a reference tone.
It's a funny one, though, because supposedly the incidence of perfect pitch among the autistic population is estimated to be startlingly higher (1 in 20) than for the general populatoin (1 in 10000). For those who were blind from birth, it's something astronomically high... like 1 in 2.
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"That leap of logic should have broken his legs." - Janissy