[pianotech] Fwd: Erwins key dip gauge

David Andersen david at davidandersenpianos.com
Sat Feb 28 09:32:27 PST 2009


I know all about your visit to Vancouver, brother. I had just had  
surgery on my left hand 2 days prior to the party, so I was missing in  
action, but I got a "contact high" from the attendees...next time, my  
friend. Such a pleasure to be your colleague....
DA


On Feb 28, 2009, at 1:37 AM, andré oorebeek wrote:

> Hi David A.
> About half a year ago i was in Vancouver. I stayed with Jack  
> Houweling (howling jack, chuckle chuckle).
> Jack is a very good friend and a very dedicated tech as well.  
> Besides having great fun and enjoying da good 'spirits' (we had  
> bloody good company btw as other very good friends were there too),  
> Jack offered to make a number of key dip block copies for some  
> Chinese colleagues across the pond. It was then that we discovered  
> that the original (yam) blocks were a hair thicker than 10mm!!
> So for many many years i have actually made key dips of appr. 10,1  
> to 10,2 mm.
> No big deal and in fact I favor a very slight 'extra' provided it  
> does not go any deeper than that.
> That was one of the reasons why i like Jurgen's crescendo front  
> punchens so much.. their beautiful firmness makes it possible for us  
> to do 'cutting edge' regulation, thereby improving the tone twofold.  
> A double whammy (isn't American Inkelish great?)
>
>
> Friendly greetings
> From
> André Oorebeek
>
> Antoni van Leeuwenhoekweg 15
> 1401 VW Bussum
> the Netherlands
>
> +31 652 388008
> +31 35 6975840
>
> oorebeek at gmail.com
> www.concertpianoservice.nl
>
> "where music is no harm can be"
>
> Sent from my iPhone
>
> On Feb 28, 2009, at 8:41 AM, David Andersen <david at davidandersenpianos.com 
> > wrote:
>
>> Hi, Andre. This is 100% my procedure as well, except I use 10.2mm  
>> instead of 10mm---a teeny little difference. Otherwise, exact,  
>> exact, precise and complete custom-to-that-action regulation, and  
>> make the final feel of aftertouch with with slight hammerline  
>> variations. Andre is so lyrical, and exactly echoes my experience.
>> David Andersen
>>
>>
>> On Feb 27, 2009, at 1:12 PM, andré oorebeek wrote:
>>
>>> I would like to explain just a little about the way I make  
>>> aftertouch because I have the feeling that some here do not  
>>> understand what I am talking about.
>>> Let me first make clear that it took me one whole week of practice  
>>> (at Yamaha) to make sure that my 10 mm key dip was a Yamaha 10 mm  
>>> key dip.
>>> I think that grueling week has made me appreciate a 10 mm key dip.  
>>> For me that is the absolute basis of a regulation.
>>> What follows (the outcome) depends on the physical abilities of  
>>> keyboard and action.
>>> A very sharp and refined regulation (what I call a turbo  
>>> regulation) usually gives a big enough striking distance to ensure  
>>> raw power, and I always get what I want.
>>> The key dip is therefor my basis, my anchor. If it is good, it is  
>>> good. I shall not touch it.
>>> The aftertouch I make by indeed raising or lowering (usually the  
>>> latter) the hammer line, thereby following the string level.
>>> To me, that means getting the utmost of power and energy.
>>> I have learned it from, among others Takahara-san and it gives me  
>>> incredible pleasure because it always works and I can always  
>>> squeeze the last drop of power, followed by a nice tuning.
>>> Voicing all that power is like working with jewels, the crown  
>>> jewels of the instrument.
>>

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