Hi Phil: There is a situation which is very frustrating in show venues where bright lights are shown upon the piano only during performances. This can knock the piano unisons out even before the concert. It may be that your situation is similar to this. I would auggest going to location during the pianist's performances and observing his playing style. He may say that he doesn't play hard, but when you hear him in concert, then you will know if this is the contributing factor or not. In Las Vegas, some pianos are tuned once a week and others for every show. When the high intensity Klieg lights come on during the show, one can hear the piano gradually go out, no matter what you did in the way of banging the keys while tuning. The amazing thing is that the next day the piano will sound fine again until the lights come on. One solution is to tune the piano after the lights have been on for about an hour or two. Jim Coleman, Sr.
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