I likewise don't like to stress the piano above 440 for the first pass, except today I did a pitch raise/tuning, about -20 cents. At the tenor break I decided to offset + 4 cents and all hell broke loose...the plate broke, it started to rain....what a mess..............................I'm just kidding. I did have to come down to pitch on the second pass in general, maybe a cent or two... David I. ----- Original message ----------------------------------------> From: Richard Brekne <Richard.Brekne@grieg.uib.no> To: Pianotech <pianotech@ptg.org> Received: Thu, 02 Dec 2004 08:47:27 +0100 Subject: Re: Pitch Raising Techniques >Agreed Terry. >As with so many of these kinds of discussions, a more precise >clarification of terms clears up most of the apparent difference in >views. In this case, what one means by overpull. For my own part, I >simply dont like the idea of tuning the first pass higher then 442. Nor >do I see the need to stress the instrument thus. I'll be the first to >admit I have no hard data or science to back up this feeling. It just >doesnt seem to me to be a good idea, especially when its simply not >necessary to get a good stable tuning at pitch in a very reasonable >amount of time. >Cheers >RicB >Farrell wrote: >>Richard wrote: >> >> >> >>>Actually, you can usually get a 100 cent flat piano at 440 pitch within >>>3-4 passes and never go above 442 to do it. I suppose you can call that >>>overpull, but thats not what folks normally mean when they use the term. >>> >>> >> >>Agreed. I would call that about 8 cents overpull (or 8% for a half-step-flat >>piano) in the mid-section of the piano! And actually, with that amount of >>overpull, you might be about 18 cents flat in the middle of the piano after >>the first pass, so maybe only a 5-cent overpull on a second pass would be >>required to get up to 440! You shouldn't need the extra two passes (well, >>maybe one more pass in the high treble if you are only going 8 cents sharp). >> >>That's what overpull is - tuning a string a calculated amount sharp to >>achieve a targeted pitch. That's what I call overpull. So what do folks >>normally mean when they use the term? >> >>I don't care if it's one or two cents overpull - if you are doing it to get >>the piano to end up at a certain pitch, then those one or two cents are >>overpull. >> >>At least in my book. :-) >> >>Terry Farrell >> >> >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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