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<p>I wonder if there is a correlation between perfect pitch and an early start on violin?</p>
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<p>An anecdote on the subject from the annals of a cappella auditions:</p>
<p>My college group gets a good number of auditionees who are accomplished musicians, but have never sung before. Our preliminary audition includes a short sight-reading exercise. One auditionee, a violinist, insisted that she had no idea how to do it. We urged her to just give it a shot to show us how she approached it. She stared at it for a few seconds, and then she began unconsciously pressing imaginary violin strings with her left hand as she sang, nailing each pitch right on the money. She didn't know she was doing it, and she didn't know she was right, but she was.</p>
<p>She didn't get into the group, but she did make it to the second round of callbacks (out of three).</p>