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#2118202 - 07/15/13 08:31 PM Key Leveling Immortalized on Film  
Joined: Aug 2009
Posts: 306
Chris Storch Offline
Full Member
Chris Storch  Offline
Full Member

Joined: Aug 2009
Posts: 306
Can anyone postulate a reason why a key leveling job like this would have made it to video? It looks horrible.

https://www.youtube.com/watch?v=cJpfYePYhZE


The Amazon.com review of the DVD quotes Clavier magazine, Walden Hughes the reviewer:
"This is a visually stunning disc choreographed with unusual camera angles and recorded on 1925 Bosendorfer in splendid condition."

I can't verify the "in splendid condition" remark, but the "unusual camera angles" drew my attention to the key leveling instantly.

I know there are some techs whose goal is to set aftertouch as evenly as possible by varying the dip. But I've never heard of varying the key height to achieve evenness of aftertouch.

I'm at a loss as to why the keys looks like this. Any theories? Would this have been done on purpose?



Chris Storch
Acoustician / Piano Technician
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#2118214 - 07/15/13 08:42 PM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: Jun 2003
Posts: 25,412
BDB Offline
Yikes! 10000 Post Club Member
BDB  Offline
Yikes! 10000 Post Club Member

Joined: Jun 2003
Posts: 25,412
Oakland
Although I would not leave them like that, it certainly reinforces my belief that spending too much time on things like leveling keys is just a waste of time and money. A good pianist will play well despite little discrepancies in regulation.


Semipro Tech
#2118253 - 07/15/13 09:44 PM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: Jan 2009
Posts: 3,489
beethoven986 Offline
3000 Post Club Member
beethoven986  Offline
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Joined: Jan 2009
Posts: 3,489
This certainly wouldn't have been done on purpose. Yes, there are little discrepancies that come up during regulation, but not to the degree that is evident in the video.

Consistent aftertouch is essential to any good regulation, and this spec is typically .030" to .045". Any less than .030" could result in clearance issues and a hard feeling follow through. Anything more than .045" will tend to feel sloppy. In either direction, the action will eventually not be functional, period. Using high quality felt punchings, and as few cardboard/paper punchings as possible, will help ensure an accurate and stable regulation.

Key height and the hammer line always made consistent. However, the actual note to note blow distance varies due to uneven string height.

Dip can be sacrificed to an extent, as slight variations of a few thousandths of an inch will go unnoticed by the pianist. In a modern piano, the acceptable dip range is 9.5mm to 10.5mm, but the optimal setting depends on hammer blow (45mm-48mm), let-off (1.5mm-2mm, 3mm for bass), and the action ratio (5.3:1-6.1:1).


#2118423 - 07/16/13 07:38 AM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: Jun 2011
Posts: 2,118
Maximillyan Online embarrased
2000 Post Club Member
Maximillyan  Online Embarrased
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Joined: Jun 2011
Posts: 2,118
KZ
For Valentina level of key is trifle . He hovers over the ocean of music. She will play on any piano " wood -cardboard -China-piano" without original name and all in the audience will happy from her interpretation.
Glory to the Russian piano School!

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#2118442 - 07/16/13 08:52 AM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: Jan 2011
Posts: 1,461
Chris Leslie Offline
1000 Post Club Member
Chris Leslie  Offline
1000 Post Club Member

Joined: Jan 2011
Posts: 1,461
Canberra, ACT, Australia
The Bosy was not in splendid condition. It was in original 1925 shape, old hammers, strings and unregulated. It was not easy to play with 75 to 120 grams of weight on each key. Never-the-less, Valentina still managed to perform those early clips using it. There was not the resources back then for anything better. Not even a tuner could be afforded, let alone regulation.


Chris Leslie ARPT
Piano technician
http://www.chrisleslie.com.au
#2118475 - 07/16/13 10:29 AM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: May 2012
Posts: 7,439
Minnesota Marty Offline

Platinum Supporter until October 5 2014
Minnesota Marty  Offline

Platinum Supporter until October 5 2014


Joined: May 2012
Posts: 7,439
Rochester MN
Her prom dress should have been regulated, however.

shocked


Marty in Minnesota

It's much easier to bash a Steinway than it is to play one.
#2118780 - 07/16/13 09:33 PM Re: Key Leveling Immortalized on Film [Re: Minnesota Marty]  
Joined: Jun 2011
Posts: 2,118
Maximillyan Online embarrased
2000 Post Club Member
Maximillyan  Online Embarrased
2000 Post Club Member

Joined: Jun 2011
Posts: 2,118
KZ
Originally Posted by Minnesota Marty
Her prom dress should have been regulated, however.

shocked

Even if Valentine wrapped in straitjacket , ocean's sounds will pour out from her Grand

#2119127 - 07/17/13 02:56 PM Re: Key Leveling Immortalized on Film [Re: Chris Storch]  
Joined: Apr 2013
Posts: 422
Carbonblob Offline
Full Member
Carbonblob  Offline
Full Member

Joined: Apr 2013
Posts: 422
Los Angeles, Ca.
with max on this one. she seemed to float on those keys yet so powerful. wow....blob


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