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#2272576 - 05/07/14 10:20 PM Re: Hammer Lacquer [Re: A443]
Ed McMorrow, RPT Offline
1000 Post Club Member

Registered: 12/09/12
Posts: 1865
Loc: Seattle, WA USA
I wrote a book about piano technology that include what I call LightHammer Tone Regulation back in the mid 1980's. It involves reducing and graduating the hammer weight across the compass, lacquering, shaping capo bars, regulating and tuning. The book title is: The Educated Piano.

The old mahogany hammer moldings Steinway used were very light. Now these trees are an endangered species.

Ray Negron of Ronsen Piano Hammer Company has a "silver" maple molding that is nearly as light as mahogany, but much stronger. I love it.
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#2272657 - 05/08/14 07:02 AM Re: Hammer Lacquer [Re: Minnesota Marty]
Olek Online   content
7000 Post Club Member

Registered: 03/14/08
Posts: 7173
Loc: France
I would be interested to read it, ED.

Hammer weight/mass , certainly is supposed to relate to the mass of the strings.

Then depending of the strike location, the energy transfer is more or less good, if I understand well (for instance small pianos can use a 1/7 strike in the basses because the strings are rigid enough.

I have actually too light hammers that do not allow the basses to give warmness.

Here the effect is evident. I also had old hammers , very light that I could make "Elegant" somehow by lacquering and shaping.

What is low in those configurations is the amount of lower partials. They do not seem to be energized the same that with correctly tense hammers.

Anyway I like that thin and clear tone but if not enough mass something is missing, , only in treble we can reinforce the partials to a point they influence (may be) the fundamental and nothing seem to miss.

What pianists want is a palette of tones with defects or better no. I have been made a little reluctant to solutions that correct to a max only a part of the tone.

Now I am much interested to listen to any novelty there.

Best regards
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

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#2272659 - 05/08/14 07:05 AM Re: Hammer Lacquer [Re: Ed McMorrow, RPT]
Olek Online   content
7000 Post Club Member

Registered: 03/14/08
Posts: 7173
Loc: France
Originally Posted By: Ed McMorrow, RPT
I wrote a book about piano technology that include what I call LightHammer Tone Regulation back in the mid 1980's. It involves reducing and graduating the hammer weight across the compass, lacquering, shaping capo bars, regulating and tuning. The book title is: The Educated Piano.

The old mahogany hammer moldings Steinway used were very light. Now these trees are an endangered species.

Ray Negron of Ronsen Piano Hammer Company has a "silver" maple molding that is nearly as light as mahogany, but much stronger. I love it.


They used Walnut, also, seem to me. or may be only on some models.
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

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#2272660 - 05/08/14 07:13 AM Re: Hammer Lacquer [Re: S. Phillips]
Olek Online   content
7000 Post Club Member

Registered: 03/14/08
Posts: 7173
Loc: France
Originally Posted By: S. Phillips
The NY piano on the left is 15 years old with the original strings. It has the original hammers but when I arrived here three years ago, the piano had not been regulated in years. .....................



Thank you for the detailed description and witnessing.

"Moisture is the enemy of felt" told me Jack Brand (Wurzen)

When the hammers have soften with a humid climate I never was able to bring density back in the heart of the hammer.

Ironing can put some out but is also dangerous for the fiber so it is not a simple operation.

Probably only the best felts can receive moisture, then shrink and go back to previous condition.

I see what you mean with fine filing (burnishing) the crown before a new event, the thin filing always add something, it is not only for shape or to close the needling holes) +
Possibly why using glass files make a different job.

I wonder if some grains of the filing paper are not inserted in the felt, that would add brillancy certainly.

Congratulations for you 180 tuning/prep Sally.

Thanks again for the posts - you write not often but it is always interesting -

And that is the first time I can hear a pianist talking of tone with side by side NY and Hamburg Steinways.

Did you see that movie where a grand Steinway is build for Helene Grimaud ?
AT some point a French pianist Pierre Laurent Aymard, comes at NY and need to choose a Steinway from the basement. He is in trouble visibly, and do not find what he wants (he is somewhat exigent , also ).

Best regards









Edited by Olek (05/08/14 10:41 AM)
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

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