Night And Day

[Erwinspiano@AOL.COM]

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In a message dated 6/28/2002 4:06:28 PM Pacific Standard Time, 
richard.brekne@grieg.uib.no writes:


> Subj:Re: Night And Day 
> Date:6/28/2002 4:06:28 PM Pacific Standard Time
> From:<A HREF="mailto:richard.brekne@grieg.uib.no">richard.brekne@grieg.uib.no</A>
> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> Sent from the Internet 
> 
>  Hi Ric

   Have also found it necessary to voice deeply in the crown several times as 
well thru out most of the set to create some sort of more uniform density. I 
guess steam would cetainly help but I'd stab em too so they don't rebound 
prematurely to the sound of breaking glass.
>>>>>Dale>>>>>>>>

> 
> 
> Hi Phil
> 
> Petrofs are pretty typically pretty zingy sounding instruments. These days 
> you
> can get either stock Petrof hammers, lots of grey dye soaked in which is
> supposed to be shoulder support, or you can get them with Renner hammers, 
> and I
> think they have lots of grey dye soaked in the sides as well...:)
> 
> Either set are hard to begin with, and get real hard as time goes by. You 
> can
> needle pretty aggresively from about hammer 70 downwards... but above that 
> you
> run into the problem you describe below...but one trick is to soften up the
> middel shoulders...pretty high up on these upper hammers... and then brush
> across the crown one drop (and only one small drop) of water and immediatly 
> zap
> it with a hot iron. Seems to last a while and gives a nice sound... plus 
> its
> forgiving in that if you have gone a bit too far you can count on the 
> hardness
> coming back sooner or later.
> 
> I dont know why they dont try other densities.... Ask Ivana :)
> 


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