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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">It's well-known that people with perfect pitch experience an
<div>upward pitch-shift with age. Typically, by around 55 years of age</div>
<div>a C sounds like a C#, and by 65 a C tends to sound like a D.</div>
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<div>I wonder if this is a universal experience or whether there are</div>
<div>people with perfect pitch -- older than 60 -- who have NOT experienced</div>
<div>an upward pitch shift.</div>
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<div>I'd appreciate people writing to me to convey their experiences regarding</div>
<div>age and AP. I'll post a summary if I receive enough responses.</div>
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<div>Thanks,</div>
<div>David Huron</div>
<div>huron.1@osu.edu</div>
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<div>David Huron</div>
<div>Arts and Humanities Distinguished Professor</div>
<div>School of Music & Center for Cognitive Science</div>
<div>Ohio State University</div>
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