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19883

Your article notes how groups of people may have different numbers of copies of the amylase gene. Is it correct then that individuals have varying numbers of the gene as well? If so, would this explain why some people don’t like meat and become vegetarians and others just need to eat meat? Robert KraseSpringville, Calif. […]

Perfect pitch isn’t so perfect in many

Among people with perfect pitch, the most common error seems to be misidentifying G flat as A, the note on which orchestras traditionally tune.

19882

This article brought to mind the history of pitch through the centuries. In the 17th century, what is now G sharp was an A.