Capo Buzz

[Charles K. Ball]

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Lance,

I would not take it for granted that this new Steinway requires this 
alteration, nor that you can improve the sound in this manner.  Kelly 
does a good job of prepping the new Steinway plates, and my 
experience is that the capo bars are quite hardened already, as I 
mentioned in my previous private post.  I would certainly discuss 
this issue with Steinway reps in NYC before proceeding, especially as 
regards warranty issues.

Charles

>So I guess my narrowed question is, given all of these excellent 
>posts, is:  With a new B, should I increase the angle and slightly 
>narrow the bar on the speaking length side, given everything else I 
>have tried?  Is there some consensus, given the problems with the 
>design?  And how do I determine if I have a "soft" V-bar?  Voicing 
>did nothing permanent but continue to weaken the piano.  I plan to 
>call Steinway first before I do anything further.  This owner of a 
>new B is currently, officially, depressed  ;  )
>
>
>
>I may first experiment with yarn in the duplex and PVCE glue on that 
>segment, before shaping the bar. 
>
>
>
>Lance Lafargue, RPT
>
>LAFARGUE PIANOS
>
>New Orleans Chapter, PTG
>
>985.72P.IANO
>
>lancelafargue@bellsouth.net
>
>
>
>-----Original Message-----
>From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf 
>Of Horace Greeley
>Sent: Saturday, October 18, 2003 11:02 PM
>To: College and University Technicians
>Subject: Re: Capo Buzz
>
>
>
>
>Ron,
>
>At 09:47 PM 10/18/2003 +1100, you wrote:
>
>At 7:22 PM -0400 18/10/03, Ed Sutton wrote:
>
>
>. . . Within the constraints of the S & S design, there are 3 causes 
>of buzz: poorly shaped capo, capo bruised by rough stringing, capo 
>too soft due to failure to case harden in casting.
>
>
>Plus the fallacious practice of attempting to set the font duplex 
>length to a harmonic of the speaking length.
>
>
>I totally agree with your assessment; and think that this practice 
>has to do with a basic misunderstanding of what the front duplex is 
>supposed to do. 
>
>The patent drawings help support this assumption.  I do not remember 
>the patent descriptions sufficiently well to know if they confirm or 
>refute what might be construed from the pictures as being a 
>reinforcing system.  This is further complicated, I think, by the 
>presence of the movable cast front duplexes still seen on so many 
>older S&S pianos.
>
>I'm sure that there are others on the list who are much more current 
>with this stuff than myself...maybe they'll speak up.
>
>Best.
>
>Horace
>
>P.S. - Almost forgot, I've heard some very good compliments about an 
>instrument of yours that a friend of mine heard in Syndey...Opera 
>House, maybe?  Good Show!!!
>
>hg


-- 
Charles Ball, RPT
School of Music
University of Texas at Austin
ckball@mail.utexas.edu
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