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#615075 - 03/30/08 12:16 PM piano that won't stay in tune!
berkeley235 Offline
Junior Member

Registered: 03/30/08
Posts: 2
Loc: Salisbury, England
I have an upright piano (a Danemann) which wasn't tuned for several years and became flat, but has been tuned regularly for the past 8 years or so. It has been fine until recently but now won't stay in tune though it's been tuned twice in two months. There haven't been any changes with heating or anything which I can think of that could have affected it. Any ideas what might be wrong?
Sleeping is my favorite hobby

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#615076 - 03/30/08 12:22 PM Re: piano that won't stay in tune!
Gene Nelson Offline
1000 Post Club Member

Registered: 09/10/04
Posts: 1735
Loc: Old Hangtown California
Have you changed tuners lately?
PTG Member

#615077 - 03/30/08 03:40 PM Re: piano that won't stay in tune!
bellspiano Offline
500 Post Club Member

Registered: 05/25/04
Posts: 646
Loc: Boston, MA
How old is the piano? How solid are the bridges?
Dorrie Bell
retired piano technician
Boston, MA

#615078 - 03/30/08 03:57 PM Re: piano that won't stay in tune!
Silverwood Pianos Offline
4000 Post Club Member

Registered: 03/10/08
Posts: 4263
Loc: Vancouver B. C. Canada
Hello berkley 235,

I can see that this is your first posting, so welcome to the forum.

This instrument has been tuned twice in two months, and nothing has changed in the environment that you can think of. I am wondering if the tuner that you are using has not communicated to you properly some of the things that could be the culprit here, perhaps due to age. There is no mention of how old the instrument is.

A couple of things come to mind. You mentioned that the instrument became flat, by not being serviced for some time. Perhaps your instrument was being tuned in the pitch it was found in over the last 8 years…….. and now the tuner has elected to raise the pitch to the proper level.

I am noting that this instrument was tuned twice in the last two months or so. To raise pitch, sometimes it is better to let the instrument “settle” for a couple of weeks, and then the second tuning. In my experience sometimes when an instrument is pitch raised, and then fine tuned, it will wander off somewhat, depending on how far up the pitch has to come. The third tuning in six months or so will stabilize the instrument.

Secondly, and more importantly you may be developing loose tuning pins. This would be the second culprit, and the more serious problem. Might be best there to obtain a second opinion from a different technician.
All the best,
Dan Silverwood
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur."

#615079 - 03/30/08 04:31 PM Re: piano that won't stay in tune!
Artisan Piano Offline
Full Member

Registered: 06/07/07
Posts: 338
Berkley, it's rare, but a structural part of the piano may have given way. This would be the back of the piano or even the iron plate could have a crack. The tuner, especially if it was the same one on both of the two tunings, should have given some indication on the second trip what would cause a sudden change like that. Generally things happen very slowly in pianos, a precipitous change is cause for close inspection.

As mentioned above, perhaps the tuning pins or bridge pins have been "hanging by a thread" for a long time and have passed a threshold to where they just can't hold anymore. Have unisons gone badly out?


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