Hi, This is one area where simple temperature change can overwhelm the tuner. I was working for the Big Valley Jamboree, a multiple day multiple group country music festival. Generally I did about 9 tunings per day. There were Yamaha cp-70's and an acoustic grand, and Fender Rhodes (and anything else that was a keyboard and tuneable) The experience I remember the most was working like a slave to get a cp-70 and fender rhodes both at A440. I finished on time before the performance which had been up to that point a cloudy warm humid day. Then the sun came out and in fifteen minutes the pianos were miles apart. The Rhodes went flat 10 cents the the CP70 went sharp 10 cents. They complained and I said what you are seeing is the result of a sudden temperature change, if you wish to stop the show I can certain retune them both for you. They looked glum and declined. I think that the dc rods with humidistat *and* a bottom cover on a grand would be a much better solution than just lights and blankets. At night I would definitely use the blankets though. Best of luck. At 11:24 AM 08/20/2001 -0400, you wrote: > Cafe umbrellas worked pretty well! Even so, the ambient temperature >was always around 90F +. Then, of course, the sun went down and the temp >dropped a good fifteen degrees or so before show time. I was constantly >chasing the tuning. I tried Dampp-Chasers but they didn't really help much >with any wind blowing at all. Anyway it wasn't so much a humidity problem >(although it was quite humid - 80% +) as the temperature change. Tuning >the piano in the morning was really just an academic excersise! Try to >tune as close to the performance as possible. I love to attend open air >concerts in the summer time but it's not really the proper environment for >any musical instrument much less a piano. I believe the artists understand >this but try to convince the promoters, stage managers, etc.. Phil >Romano Myrtle Beach, SC ----- Original Message ----- From: Wilsons > To: pianotech@ptg.org Sent: Monday, August 20, 2001 6:43 AM >Subject: Re: Hot and Heavy [ON Topic] > & > >Wally Wilson, RPT > >At 08:31 PM 8/19/01 -0500, you wrote: > Hi Z!, > But I may be fooling myself on that one. >Insulate and protect, in the best way possible. >Regards Roger. > > > >At 07:07 PM 8/19/01 -0400, you wrote: > Hi Everyone! > > What are some of the problems people have observed after a piano >got hot? > > (The stage managers have been told repeatedly not to leave the >pianos out in full sunlight for any length of time ....) > > Meanwhile I came to yet another concert rental recently which had >numerous loose lead weights in the damper system, and I'm wondering >if that one also got a good "sunburn" at some point over the summer. > >Thanks in advance -- > > RPT > MI >diskladame@provide.net > > > > > > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts mailto:drose@dlcwest.com http://donrose.xoasis.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
This PTG archive page provided courtesy of Moy Piano Service, LLC