Hamamatsu Museum of Instruments

[Richard Brekne]

Overs Pianos wrote:

>> I cant really see why  they would make the speaking length longer on 
>> the right side of the strut tho.
>
>
> They don't. They make it more progressive by laying the bridge pin 
> field back towards the rear of bridge cap area on the high side of the 
> strut and vice versa on the low side, but not completely so, since 
> they are not prepared to build a severe enough dog-leg to accommodate 
> a uniform increase in the speaking length.
>
> Note that a typical note to note spacing within the bridge section 
> will be between 13 and 14 mm, whereas the note to note spacing for the 
> two notes adjacent to the strut will be around 32-35 mm. Therefore, if 
> the speaking length is to increase progressively, there must appear to 
> be a significant dog-leg in the lay of bridge pins on the bridge cap. 
> Just lay out a test scale onto a straight strike line as an 
> experiment. All will be revealed.
>
> Does that make sense?

Yep... you cleared it all up for me now.  Thanks muchly.  I suppose I 
have seen this many times without really laying mark to it.  But this 
example seemed a bit .... well it just stuck out at me when I saw it.

Thanks for all the explanations folks

>
> Ron O.


Cheers
RicB