The Pluck-o-meters that Peter Redstone and I made were designed to 
measure the amount of force exerted by a string on a plectrum.  Not 
in an absolute sense, but in the sense that using the device on each 
key in turn enables one to see whether they all require the same 
force to sound the note.  The imperfect theory behind this is that 
evenness of touch equals evenness of speech, and that this is a GOOD 
thing.  There are many caveats and simplifications associated with 
this theory, and I dont use my pluckometer as a final arbiter; but, 
as a means of getting a more objective assessment of evenness of 
touch between two notes, I have found it a useful tool.

David

At 08:34 07-03-17, Martin Spaink wrote:
 >
 >I made a pluck-o-meter some time ago when I was testing suitable
 >leather for a Pleyel harpsichord. Since re-leathering 244 jacks is
 >quite a job, I wanted to be sure I got the right stuff, so made a
 >torturing device. It is rather simple. It does not have a meter, but I
 >timed the number of plucks per minute. Some leather prooved really
 >shitty, as it tired real soon, like 10 K plucks and it was dead. The
 >proper stuff went over half a million plucks, which is when I gave up
 >on torturing it.
 >http://imageshack.com/a/img62/5444/kqyx.jpg
 >https://imageshack.com/i/nfs5yej
 >
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Note:  opinions  expressed on HPSCHD-L are those of the  individual con-
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