Marring and tarnish won't affect tone but you can always shoot the brass with brass lacquer to keep it shiny. Most manufacturers who use brass don't, though. David Love davidlovepianos at comcast.net www.davidlovepianos.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Ron Nossaman Sent: Wednesday, August 08, 2007 9:14 AM To: Pianotech List Subject: Re: Counter-bearing drag > Ron: > And how will the eventual marring and tarnish affect tone? I don't know that it will, one way or the other. > What concerns me is damage to the brass as a result of the string > compression that one finds on old pianos that use this system. This > includes brass aliquots that have even been plated. What if the string > spacing needs to be refined? Refine string spacing after how many years of being where it is? Has this really been a problem in older pianos with half round or oval counter bearing bars? I can't say it has been for me, but then different locations have different realities. >What happens to the profile of our > termination? What profile? My counter bearings don't define a speaking segment, so they don't get profiled. They get left at the radius of the rod they were cut from. >Then again you see the same damage to the cast iron v-bars. Yes we do, and at what tonal penalty? > Uggg! Only questions, so few answers. :) But we *can* ask more specific questions and examine the premises around which our questions are formed for validity. Ever read Ayn Rand? Whenever you are facing a contradiction, check your premises. One of them is wrong. Ron N
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