Hamburg B Key Inertia

[Overs Pianos]

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>Recently I saw a Hamburg B (1970s) on which the keys had been front 
>weighted and back weighted on the last few notes before the 
>bass/tenor break.  Say notes 16 or 17-20.  It looks as if they were 
>trying to increase the inertia on the last few keys before the 
>break.  Any ideas about why they would do this?
>
>Phil Ford

No Phil I haven't. But I've seen the same oddity on Samick grands. In 
the case of the Samicks their actions are manufactured with wippen 
assist springs. A possible explanation for the Samicks might be that 
the key board was first weighted with a generic distribution of 
weights, but the assist springs were heavily loaded (as they often 
are on new wippens which haven't been set up) so as to result in a 
very light touch weight. A shoddy approach to increasing the touch 
weight to a 'normal' specification after the event might be to add 
more weights into the back of the key.

Ron O.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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