[pianotech] [CAUT] More Bohemia

Bernhard Stopper b98tu at t-online.de
Sun May 3 08:54:24 PDT 2009


Am 03.05.2009 um 02:14 schrieb Richard Brekne:

> Hi Bernard.
>
> I really don't want to get into making a case for who was first with  
> what per sé.  It is enough for me to recognize that others were  
> before me when it comes to tuning with the idea of perfect 12ths as  
> a priority and not octaves.  I'm really unsure when it comes down to  
> just plain listening to the end sound of a piano just how much  
> different your Tunic software is with what Virgil ends up with, or  
> what Gary would end up with or what I end up with. And, as I said it  
> is here I find the most interesting path forward.
>
> I do think tho that in the case of Gary, myself, and you.... we are  
> all clearly onto very similar ideas... tho to be sure there are  
> significant differences. But lets not over state these. For  
> example... and from a purely maths perspective to illustrate what I  
> mean...  you stated in your last that 3:1 is not the same as  
> 6^(19/31). This is technically true. But the latter does work out to  
> 2.998688889... (:1).  Translated to real world mechanics with all  
> the imperfections that implies.... we are not really talking about  
> anything different.  In a real piano... with real inharmonicity if  
> you take for example D3 and tune its 3rd partial to 440, and then  
> tune A4's fundemental to exactly 440 or just sooooo slightly less  
> then what the above difference implies... you change really nothing  
> in the resulting relationship between A4's fundemental and D3's  
> fundamental.  D3's fundamental is a result of tuning D3's 3rd  
> partial to 440. So its already fixed.  Tuning A4's fundemental to  
> this same 440... or 440 minus the 0.00006297... difference 6^(19/31)  
> implies is not even a promile of a cent


Sorry Ric, but you are completely wrong here. The difference of my  
temperament  compared with Gary´s over a telfth is 3:2.998688889  
(whithout inharmonicity, so that equals to 0,75 cent. That is not at  
all an academic difference for me.

Cheers,

Bernhard Stopper




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