This is a multipart message in MIME format ---------------------- multipart/alternative attachment Made by who? You? I'dl like a sample... David Ilvedson ----- Original message ----------------------------------------> From: antares <antares@euronet.nl> To: Pianotech <pianotech@ptg.org> Received: Thu, 11 Nov 2004 18:32:09 +0100 Subject: Re: About after touch On 11-nov-04, at 3:19, William R. Monroe wrote: One other issue that I'm still not convinced is not part of it,= is the jack to knuckle placement. There is still plenty of room= in the window to allow for more aftertouch, and thus more= clearance of the jack from the knuckle, but I already have about= .055" of aftertouch (measured by placing .055" of punchings on= top of front rail felts and seeing that escapement just barely= occurs when the key is depressed). I hesitate to think that= more aftertouch would be appropriate. One of the very great developments of our business here in= Holland is the new front punching called "Grand Piano= Punching". I have worked for years on this and we now offer this punching= world wide. And why then is it so very nice one could ask? Because it has a fantastic homogenous density, but at the same= time it is not too hard. It makes for a very sharp after touch, and thus for the sharpest= regulation possible. As I said, it took me years to get this together, and it is even= better than the Yamaha or Steinway punching because of its= density and firmness. I wrote about this before : after touch should be =B1 0,4 mm,= meaning that after drop, and after the landing of the hammer, we= should be able to move the hammer up 0,4 mm by softly pressing= the key. If you see no movement at all, you have no after touch.= If you see a lot of movement, your front punching is too soft or= you have too much after touch.... which is it? That's why you need to make sure that before you start a= regulation, your front punching is of the right firmness. I will explain once more : A key is like a sea saw. Usually, we find an old car tire under both sides of the sea saw= to soften the impact. Nevertheless, a little child sitting on= the high end of the sea saw will bump upwards slightly because= of the impact at the lower end. Now, if we take away the tires, the impact will be much harder= and it will hurt the behind of the child coming down, but it= will also cause the other child to almost get airborne, because= the force of the impact is much stronger. That is the an analogy in regard to a more firm front punching := It causes a more intense transfer of energy and thereby creates= a louder tone. Your regulation can be more precise, thereby giving you the= maximum tonal output. I often ask a critical technician or pianist to listen to a= particular tone and to feel its touch. I then exchange the front= punching with our own front punching, and I ask the same person= to listen and feel again. They always are flabbergasted by the= result. friendly greetings from Andr=E9 Oorebeek "where Music is, no harm can be" ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/85/fa/7d/db/attachment.htm ---------------------- multipart/alternative attachment--
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