[pianotech] Ibach Grand

PAULREVENKOJONES at aol.com PAULREVENKOJONES at aol.com
Wed Nov 25 19:53:01 MST 2009


Thanks, Mike.
 
P
 
 
In a message dated 11/25/2009 7:49:45 P.M. Central Standard Time,  
mike.spalding1 at verizon.net writes:

He might  also measure the speaking lengths at the top of the scale, and 
calculate  percent of breaking strength - C8 shouldn't be longer than 52 
mm or so,  which would be a BP of  60%.

PAULREVENKOJONES at aol.com  wrote:
> Thanks, Ron. I've forwarded this on. If you think of anything  else in 
this  
> regard, or if anyone else has ideas or experience  with this beast, I and 
he 
>  would be most  appreciative.
>  
> Happy Thanksgiving!
>   
> Paul
>  
>  
> In a message dated  11/25/2009 3:11:21 P.M. Central Standard Time,  
>  rnossaman at cox.net writes:
>
> PAULREVENKOJONES at aol.com  wrote:
>   
>> A question from a colleague   which I can't answer; anyone?
>>  
>> / I am tuning an  Ibach  grand with a movable action.  It has 99 
possible 
>>  notes only 85  keys.  It moves to the left if you want to play  really 
low 
>> bass  notes, or it moves right it you want to  play higher than usual 
>> treble  notes.  It moves a 5th  in either direction.   
>>      
>
> Cool!
>
>
>   
>> Where  is A440?  
>>     
>
> At A-4,  naturally.  <G> Ok, ok, Find the unison with the 
> speaking  length around 415mm.  That ought to be it. I'd guess 
> the  transposer would be centered, but what  I think is 
>  reasonable...isn't necessarily the way it is.
>
> Ron   N
>
>
>
>    


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091125/32fff117/attachment.htm>


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC