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Piano action issue
#2828521 03/19/19 04:31 AM
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I've had two grand now in the same space and both have had this problem

When i play it for a couple hours, it becomes more and more difficult to press the keys. It's as if the weight of the keys becomes heavier with use. I struggle to find the correct words to describe the problem. This is as good as i can think to describe it

Other issues that come and go with extended use are keys that stay sustained after i let off the note. Like the other issue it disappears when i stop playing and come.back hours later

I do have a humidity level that's not exactly great, but i do have a damp chaser. The piano is upstairs.

What is going on? Is this a humidity problem? What can i do?

Re: Piano action issue
kokatla #2828532 03/19/19 05:40 AM
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Hi kokatia,

Have you shared these issues with your piano technician, and if so, what have they said about it? There is too little information here to give you a solution. It is a bit like coughing into the phone and asking your doctor to diagnose you.

It could be that the bushings in the action and the damper guide rail have swollen with humidity. It could also be that you have a case of verdigris in an older piano. This means that the felt bushings in all of the joints have developed a green "sludge" as a chemical reaction over time and this impedes the movement of the action parts.

I think you need eyes on your piano but I would love more information.

My quick 2 cents,


Rich Galassini
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Phila., Pa.
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rich@cunninghampiano.com
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Re: Piano action issue
kokatla #2828717 03/19/19 03:07 PM
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Without more information we can merely speculate about this problem. I think that it could be an environmental cause, as both of your grand pianos have been affected. While a Dampp Chaser can help in maintaining a reasonably stable humidity level in your piano it will not fully protect your piano in extremely humid situations.
Where do you live? Sticking notes and a heavy, sluggish action suggest excessive dampness is damaging your piano.
It is certainly sensible advice to consult a piano technician and have the humidity levels in the room checked.
In addition to the Dampp Chaser, it may be necessary to install air conditioning to keep your piano and you happier.
Best wishes for solving this problem.

Kind regards,
Robert.

Re: Piano action issue
kokatla #2828829 03/19/19 09:31 PM
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Do not discount the fact that it could be a health problem, that your fingers get more and more tired after 2 hours. Try measuring the downweight of the keys when you start, and when you have played for a while.


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Re: Piano action issue
BDB #2828846 03/19/19 10:28 PM
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Originally Posted by BDB
Do not discount the fact that it could be a health problem, that your fingers get more and more tired after 2 hours. Try measuring the downweight of the keys when you start, and when you have played for a while.

I've actually thought about this. Im not sure how to measure it, but id love more info. Using quarters maybe?

Re: Piano action issue
kokatla #2828850 03/19/19 10:49 PM
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Coins are fine, as long as you do it in the same way before and after. I think "stamina" is a better word than "health," upon thinking it over. You can build stamina. Just remember that stamina is both a physical and mental matter, and music exercises both!


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Re: Piano action issue
kokatla #2828851 03/19/19 11:01 PM
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Do you play two hours daily, or just once in a while?



Kindness is the language which the deaf can hear and the blind can see
~Mark Twain
Re: Piano action issue
Retsacnal #2828858 03/19/19 11:41 PM
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Originally Posted by Retsacnal
Do you play two hours daily, or just once in a while?


Sometimes up to 4 daily.

Re: Piano action issue
kokatla #2828866 03/20/19 12:21 AM
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Originally Posted by kokatla
Originally Posted by Retsacnal
Do you play two hours daily, or just once in a while?


Sometimes up to 4 daily.

I asked out of interest in the stamina issue BDB brought up. "Sometimes" and "daily" are weirdly ambiguous together. For example, you could play 20 minutes six times a week, and up to 4 hours once a week (i.e. sometimes), and still have a stamina issue at the 2 hour mark.

But then it occurred to me that if the dampers stop dampening properly after extended use, then at least that's not a stamina issue anyway.



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Re: Piano action issue
Retsacnal #2828873 03/20/19 12:39 AM
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Originally Posted by Retsacnal
But then it occurred to me that if the dampers stop dampening properly after extended use, then at least that's not a stamina issue anyway.


It is if you rest your hands on the keyboard when you get tired.


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Re: Piano action issue
Retsacnal #2828887 03/20/19 02:12 AM
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kokatla Offline OP
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Originally Posted by Retsacnal
Originally Posted by kokatla
Originally Posted by Retsacnal
Do you play two hours daily, or just once in a while?


Sometimes up to 4 daily.

I asked out of interest in the stamina issue BDB brought up. "Sometimes" and "daily" are weirdly ambiguous together. For example, you could play 20 minutes six times a week, and up to 4 hours once a week (i.e. sometimes), and still have a stamina issue at the 2 hour mark.

But then it occurred to me that if the dampers stop dampening properly after extended use, then at least that's not a stamina issue anyway.

Right, it would be maybe some combination. The techs have thought friction, but I dont know if thats humidity related. The keys that stick are always the same ones. Its the higher octave F and G. Ironically.. the same area was effected on the other grand I had.


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