[pianotech] Understanding Aftertouch

Steven Hopp hoppsmusic at hotmail.com
Fri Apr 17 06:22:21 PDT 2009


Hello,

 

I am trying to grasp the production and feeling of Aftertouch in a fine regulation.  Can anyone explain how much a person who plays the piano normally can feel or tell if there is aftertouch.  I have read all of the PACE materials on the subject and some other sources, and while they explain how much in thousands the key dip might continue and looking for wippen and hammer rise they don't say how much for the last two.  It seems that viewing hammer rise to gauge aftertouch would be the easiest to determine.  

 

So how much does or should the hammer rise be?  

 

When the cycle of let off and drop is complete how much pressure on the key is needed to see or feel the aftertouch that is or is not present?  (the pressure required to push a button on an elevator or enough to feel the FR punching compressing)

 

I recently posted that I installed the crescendo conical punchings on my Yamaha G3.  I am not sure how I feel about them.  I am trying to decide whether they are just too hard (and noisy) or is it that I do not have enough aftertouch to allow for the keystroke to slow down enough at the end of the motion to produce a softer bottom to the stroke during normal playing.  

 

I hope this makes sense and appreciate any help.  I am planning to take regulation courses on Wed. in GR this summer so if I don't have it soon I am sure I will get it by then.

 

Steven Hopp

Midland, TX

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