Scaling questions: was Re: US made Yamaha upright

[David Love]

Del:

Does it follow, then, that a heavier soundboard requires a higher tension
scale?  And then what happens when you put a higher tension scale on a
lighter soundboard assembly?  In the calculation of the tension of a scale
is it important to consider the type of soundboard assembly?  I notice in
perusing Travis that the scale tensions probably vary quite a bit from piano
maker to piano maker.  Is that owing to differences in fundamental
philosophy or soundboard assemblies?  Lastly, in the calculation of
tensions, is there a trade-off between power and sustain?  Or are they
unrelated?

Inquiring minds want to know.


David Love

----- Original Message -----
From: "Phillip Ford" <fordpiano@earthlink.net>
To: <pianotech@ptg.org>
Sent: July 31, 2002 5:18 PM
Subject: Re: US made Yamaha upright



> Please repeat after me:
>     Power is good! Dynamics are bad!
>     Power is good! Dynamics are bad!
>     Power is good! Dynamics are bad!.....
>
> The real solution would be to swap out the
> soundboard with one that is a bit
> more flexible and probably a bit lighter, back
> off on the scaling some and
> then use a more resilient hammer; all of which
> working together are better
> suited to the type of dynamic sound you find so
> endearing.
>
> Del
>
>
Would backing off on the scaling be the same thing as lowering the tension?

Phil F