Hi Mark, To check hammer/string contact in the high treble of a vertical piano, use a finger on the catcher(butt chech) to gently press the hammer to the string. Make sure the damper has lifted. Pluck the strings above the hammer head with a little piece of piano wire. Level the strings by pushing toward the plate and/or file the hammer to fit. Glue a 1/8 inch strip of emery cloth down the center inside of a half round section of 2 inch diameter PVC pipe sliced a little wider than the width of a hammer. The PVC fits easily over the hammerhead with the action in the piano. You can align it to file away a little of the left, center or right string cuts as needed. Please tell us if string leveling solves the problem. Ed Sutton ---------- >From: Mark Cramer <cramer@BrandonU.CA> >To: caut@ptg.org >Subject: RE: psycho-acousti-what? >Date: Fri, Feb 16, 2001, 10:00 AM > > Thanks Jim, > I've levelled strings in some verticals with agraffes (Petrof, etc.) in the > tenor. Any suggestions on how to block the hammer and pluck strings in the > treble? > > Mark Cramer, > Brandon University > > -----Original Message----- > From: owner-caut@ptg.org [mailto:owner-caut@ptg.org]On Behalf Of harvey > Sent: Wednesday, February 14, 2001 2:33 PM > To: caut@ptg.org > Subject: Re: psycho-acousti-what? > > > On 13 Feb 2001, at 14:51, Mark Cramer wrote: > >> A year ago, a client told me she had several notes on her (Baldwin) > console >> that physically hurt her ear when she played them. > [liberal cutting] > > Mark, > I may be way off base on this, but I also had a client with the same > complaint in the same area. Only difference was that it was on a > new Baldwin studio, not a console. > > The client was delighted at the results. (I've personally yet to walk > away from a Baldwin with a warm fuzzy feeling). > > The "fix" was doing one or both of the following to the offending > notes: > > 1. Torch hammershank and respace. The hammer wasn't hitting > the string squarely. Results are the goal; cosmetics are last in list > of priorities. > > - Leveled strings. Same idea as above, and once discovered it was > quite obvious. I don't normally bother with this type of thing on > verticals. > > In either case, for lack of a better explanation, and since rescaling > was out of the question, I'm calling this a phasing problem that > revealed itself when certain intervals were played. > > Jim Harvey > [I just fix the stuff, I don't build it] > > > > Jim Harvey > harvey@greenwood.net > Greenwood (n): the largest city in South Carolina WITHOUT an Interstate >
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