Voicing M&H BB

Overs Pianos sec@overspianos.com.au
Thu, 25 Oct 2001 18:14:43 +1000


Terry,

>Junk hammers? I'll buy that. But why the HUGE change in tone across the
>break? I would think that if all the hammers are whatever grade of junk,
>then this must go way beyond hammers only.
>
>Del or Ron? Any input from a belly/scaling perspective?

While I am unsure whether the BB you describe bears any scaling or 
bridge layout resemblance to the current BB, I had a look and listen 
to the new BB which was displayed at Reno (at a quiet time in the 
loading dock after the convention when our piano was being loaded out 
on the Monday morning). My impression of this instrument was that the 
impedance matching across the break between the treble and bass 
bridge was perhaps one of most varied I had encountered on a 7' 
grand. Its even more dramatic than the Steinway B. Both get 
progressively thinner toned heading down towards the break, then 
'boomy' and 'fat' at the first note on the bass bridge.

A quick look at the location (read distance) of the bridges out from 
the inner rim told the story. Tapping on the ends of the bridges 
further confirmed my suspicion (yes you can do this even when the 
piano is strung - try it!). The upper end of the bass bridge was 
located far away from the inner rim (as is typical on so many 
pianos), while the lower end of the treble bridge headed over towards 
the bass side to end up too close to the rim. The poor tonal 
transition was mostly a consequence of the bridge location on the 
board, but the 'hockey stick' treble scale didn't help either.  The 
tension was obviously falling away rather badly towards to lower 
tenor area of the long bridge. I would like to get a copy of the 
speaking lengths and wire diameters if any one has info on hand. If 
anyone's got the scale I would like to get it as an attachment. Send 
it to mailto:ron@overspianos.com.au

When there is a major change in the response of the board over the 
break, there is nothing the voicer can do to fix the transition.

Actually, I was somewhat disappointed at the design of the BB. I had 
heard so much about the piano before going to Reno, so I was 
expecting something really good.

Ron O
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Website:  http://www.overspianos.com.au
Email:        mailto:ron@overspianos.com.au
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