<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On Nov 16, 2006, at 12:12 PM, <A href="mailto:reggaepass@aol.com">reggaepass@aol.com</A> wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">I don't have any personal experience with this, but I would imagine that taking a piano out of an "ideal" environment into one that has substantially more or less relative humidity (+/- 25% !) just hours before the concert would DEstabilize it. Anyone out there have experience with this?</FONT></P> </BLOCKQUOTE></DIV><BR><DIV>I think it depends. We had a feasibility study for a mid size concert hall done about 5 years ago. I requested a climate controlled closet for pianos. The architect claimed he'd built lots of performance venues and made the claim that "most" places preferred to have the piano be at whatever the hall climate was. I think once you turn on the hot lights, it really doesn't matter.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Our pianos stay on stage in our small recital hall, even though we have closets designed and included specifically for the pianos. I know I've seen changes in our piano just from turning on the "house" lights during the day, and the change is significant enough that I changed my tuning time from first thing in the morning to just before recitals begin. I suspect you are more likely to have a temperature change than much of a humidity difference, and the piano will react almost immediately to temperature. So I don't see how you can get around some degree of instability either way.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Jeff Tanner, RPT</DIV><DIV>University of South Carolina</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></BODY></HTML>