Lost motion test..addendum question

[KeyKat88 at aol.com]

Greetings, 

         Oh and to add an addendum to my question, Sometimes it seems as 
though the keys dont know where to settle on the balance rail in order to even do 
the "top of the key tap" test! If I push them slightly down they may stay 
there, or lift them alittle they will rest there etc. The key bushings are not 
tight, I know this...or should they be eased more?   The thing plays okay, no 
seized keys.

        Whats up with that? Does it have to do with weights or lack of 
weights or balancing in upright keys? If a key doesnt display a definitive/definite 
settling balance point at rest (well it really cant be resting if its resting 
point is variable, now can it?...or can it?) then How do you know where that 
true resting point really when the key behaves like this?

JUlia
Reading, PA
In a message dated 5/4/2006 5:31:47 PM Eastern Standard Time, 
chengrpt at comcast.net writes:
The lost motion test is the winking of the back check.  It should only wink 
slightly.  
When you grad the key and move it UP and DOWN you’re not testing the lost 
motion because you are lifting the key and therefore adding downward travel, 
perhaps giving the illusion of lost motion.  
 
The most important part is how the action feels when played.  You don’t want 
the hammers jumping to the strings and you don’t want to feel like your 
playing on the keybed either.  
 
I hope this helps.  
~Greg
 
__________________________
Gregory P. Cheng RPT
West Chester PA 19382
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