Call for scaling spreadsheets

[Stéphane Collin]

Hi Ric.

While evenness of inharmonicity seems indeed obviously desirable, don't we 
want to be able to evaluate the overall inharmonicity of a piano ?  I mean 
you can desing a scale that will be even in inharmonicity, but whose overall 
inharmonicity is so high that the piano sounds funny, same (but less 
probable) for a piano with too low inharmonicity.  Isn't there a link 
between overall inharmonicity and "projection" (ability of the piano to fill 
a space with it's sound) ?  There is certainly a link between overall 
inharmonicity and personnality (sorry for that vague and subjective word).

Regards

Stéphane Collin

----- Original Message ----- 
From: "Ric Brekne" <ricbrek at broadpark.no>
To: <pianotech at ptg.org>
Sent: Friday, September 29, 2006 9:32 AM
Subject: Call for scaling spreadsheets


> Ron Overs gives
>
> (CovDia^2/CoreDia^2-1)*0,89
>
> for B for bass strings in the spreadsheet he posted a while back.  I would 
> be really interested in hearing the reasoning behind this.
> Fandrich, and I have heard this many times here as well, underlines that 
> the whole Inharmonicity bit with regard to scaling is to insure evenness. 
> No big jumps from one note or region to the area.  As such, strikes me 
> that it is less important what standard one uses as long as its reasonably 
> close.  Relative degrees of overall inharmonicity will be seen from scale 
> to scale as long as you use that same standard.
>
> Cheers
> RicB
>
>