[pianotech] Pitch Raising

[Joseph Giandalone]

Mr. Formsma,

Thank you for injecting your voice of reason into this nigglefest.

I would even add that your third paragraph (below) is too generous a concession. The immediate results of one's first-pass PR is just a "snapshot" of the frequencies in the speaking lengths of the strings. It doesn't take into account the state of tensions in other segments of the strings, nor the overall dynamics of the soundboard/bridges, nor the tuning pins. The true proof of the pudding will be the stability of the fine tuning(s) to follow (in some cases some weeks later).

Joseph




On Oct 31, 2012, at 11:57 AM, John Formsma wrote:

> I find it rather humorous to read all this nit-picking over a pitch raise. The purpose is to get it close. I don't know if you're going to realistically get the treble much different with a 30%, 35%, or 38% overpull. Translate the different overpulls into cents, and I bet you don't come up with much real-world differences.
> 
> And each piano reacts somewhat differently. As an aural tuner, I have gotten enough experience to know that certain pianos don't need as much overpull. Get it close, do it fast, do it again if necessary. Tune. Then watch it go out of tune by the next appointment. Happens every time. <G>
> 
> Yeah, in theory, the closer you get in the PR, the better the fine tuning afterward. But reality is the same: a piano that has had a PR won't be as stable as one that hasn't. 
> 
> -- 
> John Formsma, RPT
> Blue Mountain, MS