radical vertical piano soft pedal regulation

[John Delacour]

At 06:23 -0700 30/3/08, Tom Sivak wrote:

>The soft pedal was set so that when depressed it
>brought the hammers to within a half inch of the keys.
>  I thought, "Whoa", I'll have to fix that, but to my
>surprise...it works like a charm.

Not the sort of charm that would persuade most players!   The 
half-blow action, without lost motion compensation, which no maker 
fits any more, is nothing but a cheap fudge.  It would be easy for 
makers to fit a proper una corda action to uprights without any extra 
expense but apart from BlŸthner in the old days I know of no other 
maker that did this for an underdamper action.  Brinsmead had una 
corda with the overdamper action.  On the BlŸthner the dampers are 
screwed to an L-beam screwed to the frame, so that the hammers and 
levers can be shifted without affecting the dampers.  These actions 
are very easy to work on and regulate, having the added advantage 
that the hammers are screwed on at the back, as in an overdamper 
action, so they are easy to remove without touching the levers.

JD
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