I wouldn't think the small temperature difference would be significant. The humidity difference is great, but the change should be fairly slow over the few hours of a concert. I've seen more sudden effects from temperature change caused by stage lighting. Did you measure the effect on, say, the pitch of A4? --Cy-- Cy Shuster, RPT Albuquerque, NM www.shusterpiano.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100315/358bd907/attachment.htm>
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