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David
I wasn't going to get into this but I've followed this thread & I totally
concur with your previous post & the one below & have experienced the effects
you chronicle below with hard pressed hammers. Usually the difficulty is on
older flatter board & my experience has been with Abel & Renner USA type
hammers. These older boards often have no use for the kind of hardness inherent
in these brands. Even massive needling can't seem to arrive at a tone
acceptable to my ear or that of the customer in these cases. One brand doesn't fit
all.
David I. I tend to agree with you about voicing stability of less
"tensioned" hammers holding up. Since they are inherently more
flexible,resilient,less tensioned, whatever the middle of the hammer isn't frozen & still acts
springy. I've witnessed this at CSU Sacramento in a most dramatic way.
2 Mason As, one with Isaac hammers & one with a Renner hammer. Both in
practice rooms side by side both played umteen hours a day for 7 years. The
renners have massive string grooves & are worn out & the Isaac barely shows
string grooves & sounds great.
Both were voiced when installed. One of many experiences with this. My
friend Peter Clark is a master voicer. You decide fact of fiction
Dale
The evidence of different soundboards (and soundboards in various
conditions) needing hammers of varying densities is so abundant in the
piano circles that I run in that I don't even know what to say to those
who are interested in this possibility except try it for yourself and
see. You wouldn't put a very hard Renner hammer designed for a
Boesendorfer on a piano that would sound best with a Ronsen soft Bacon
felt hammer--and there are many such examples out there. A lengthy
explanation as to why that might be is more than I am prepared to get
into at this point but in as much as new soundboards require different
types of hammers (think Yamaha hammers on a NY Steinway or vice versa)
so will old ones. An old ugly Yamaha that probably sounded ok with a
Yamaha hammer when it was new, may very well sound better with a softer
Wurzen hammer now that it's older and responding differently and tends
to support my point. The evidence is at least empirical whatever the
science may or may not convince you of. While a medium hammer may give
the most flexibility to go either way on many pianos, there will be
cases where hammers which fall at one end of the spectrum or the other
will be the better fit.
As far as how long a hammer will last, unlacquered versus lacquered; the
issue seems to be how much lacquer and how it is applied. A weak
stiffening solution probably doesn't do much to effect the life of the
hammer. But since lacquer gets harder and more brittle over time, a
heavily lacquered hammer will not last in terms of controllability as
long as an unlacquered hammer, assuming it hasn't been needled to death.
David Love
davidlovepianos@comcast.net
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