[pianotech] FW: what is this?

[Ryan Sowers]

Sounds like a great experiment for Jim Busby and the anechoic chamber piano
research that is being done at BYU! By the way, he will be presenting the
latest research at the annual conference next year so don't miss it!

The placebo effect with pianos is certainly real. Not all differences really
make a difference.

Ryan Sowers, Director
PTG Technical Institute
2012 - Seattle, Washington
The Harmonious Technician

On Fri, Sep 30, 2011 at 8:47 AM, Gregor _ <karlkaputt at hotmail.com> wrote:

>  David,
>
> exactly that. Obviously your German is better than my English :-)
>
> This wondrous technique was discussed in a German forum, too. The question
> was if that is not a little bit too esoteric. But Stefan Knüpfer is not
> known for esoteric stuff, he believes in physics. A German collegue wrote
> that his grandfather used that procedure too (but not with a jig saw but by
> hand). In the end nobody was able to explain why it should work, but some
> claimed that it works. Whatever working means in this context.
>
>
> Gregor
>
> ------------------------
> piano technician - tuner - dealer
> Münster, Germany
> www.weldert.de
>
>
> ------------------------------
> From: firtreepiano at hotmail.com
> To: pianotech at ptg.org
> Date: Fri, 30 Sep 2011 07:50:54 -0700
>
> Subject: Re: [pianotech] FW: what is this?
>
>  My reading of the German is that he is speaking to freeing up a stuck
> system. He had a piano that had not been played in a long time, and his
> sense was that the soundboard, etc., would not move freely until it had
> gotten used to moving again. Breaking loose the grain. Overcoming
> “sticktion.” Car engines and suspensions will sometimes act stiff until they
> are driven a while.
>
> Sounds like loose logic to me, but if he got results, it is worth
> pondering.
>
> David Stocker, RPT
> Tumwater, WA
>
>
>  *From:* John Formsma <formsma at gmail.com>
> *Sent:* Friday, September 30, 2011 05:59
> *To:* pianotech at ptg.org
> *Subject:* Re: [pianotech] FW: what is this?
>
> Yeah, right. :) I'm not agreeing that you can put energy into a soundboard
> with a tennis ball. I mean, yeah, you can, but it comes right back out. Just
> like when a hammer hits a string. Nothing gets stored like in a energy
> reserve.
>
> --
> John Formsma, RPT
> Blue Mountain, MS
>
>
> On Fri, Sep 30, 2011 at 4:18 AM, Gregor _ <karlkaputt at hotmail.com> wrote:
>
>  Here is a cutout of an interview with Stefan Knüpfer about that question:
> *Basicaly it says this in English:*
>
>
> Why to use a tennis ball in a grand?
> Long time no play, piano is like sticked in the mud, it needs energy to
> move and swing free again. The idea is to put energy into the soundboard not
> via the action but from above with the aid of a tennisball of a jig saw. It
> knocks the piano beautyful soft and it gets a free tone.
>
>
>
>



-- 
Ryan Sowers, RPT
Puget Sound Chapter
Olympia, WA
www.pianova.net
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