[pianotech] soundboard grain angle vs "faux"stiffness

[David Love]

Did you modify the agraffe line  on this one?


David Love
www.davidlovepianos.com

-----Original Message-----
From: Dale Erwin <erwinspiano at aol.com>
Sender: pianotech-bounces at ptg.org
Date: Wed, 14 Jul 2010 12:25:31 
To: <pianotech at ptg.org>
Reply-To: pianotech at ptg.org
Subject: Re: [pianotech] soundboard grain angle  vs "faux"stiffness

Hi Jim
 See below

 

 

Dale S. Erwin
www.Erwinspiano.com
209-577-8397

 





            
    
          
            
               It's dark, powerful and                    voluminous 
          
        
    are you by chance a wine taster by trade <G>  no
     my tonal envelope is power with out noise. Or as Starr Taylor says" Without the strident clang that permeates the piano tonal landscape of today"  Predominant fundamental balanced by upper partial clarity but no clang and little percussion on hammer impact sound.  I seem to be allergic to it
can I take this to mean prominent fundamental and lower partials    with a reduced prominence of the uppers?
    
    
          
            
The design spec: is a grain angle that                    follows the long bridge (approx 30 degrees off the                    long side)
          
        
    
    hmm.  Yes for me I've always measured it off the spine. Easier. Stwy models S,M,L,O are 45 degrees,(some )s in the 30's) and A's thru Ds are 40 degrees with some anomalies
    
            
          
,serious                  curved cut-off bar,
                  
                
        
      where does the cutoff end in relation to the tenor    ribs? See pictures
    
    Jim I
    
    
    
-- 

Jim Ialeggio

grandpianosolutions.com

978- 425-9026

Shirley, MA
  
 
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