Hello List et All, I am trying to concentrate on the Yamaha problem, because I īll be back on that piano on Wednesday. For those mentioning drafts, and temperature changes, I īll check again. But the place is very stable, and I noticed no way to get drafts around the piano. About the plate bolts. I am giveing it a lot of thought. Remember the way it goes out of tune, some strings up 1/2beat or so and some down in almost the same amount I am more inclined to check the bridge pins as Avery said Elian Degen
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