[pianotech] FW: what is this?

[John Formsma]

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.
>
>
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