Lawrence,
This may sound brutal, but I do it all the time. I would set my
starting note at A455 and pull the pitch up in one pass. Of course, I
stripmute the whole piano and raise all the middle strings, then all the
left strings, then all the right strings. Rarely is string breakage a
problem.
I feel that a piano which is not at A440 is not in tune.
Ken Burton SEE YOU AT SEASIDE!
"Doctor Piano"
Calgary, Alberta
On Sun, 10 Mar 1996, Laurence Beach wrote:
> Dear Pianotech people:
>
> Actually, the subject maybe should have been Henry Herbert player piano.
> Anyway, I was called to tune one of these the other day. It was about
> 110 cents flat. The first thing I did after removing the action and such
> was to dab a drop of protech at each bearing point on the V-bar. At
> first I was timid and only raised the pitch up to 80 cents flat.
> However, I discovered much to my delight, that protech worked so well
> that I would raise it to -50 cents flat. I never heard one ping of a
> string breaking from its bearing point. Considering I hear this on new
> pianos even, when I have to pitch raise them, that was quite remarkable.
>
> As for the piano itself, which was made in the very early 20th century,
> it seems in remarkably good shape, if no work has been done on it for
> quite some time. It is very dirty inside, and the action generally
> worn. The tuning pins, although not tight like a new piano, were
> reasonably tight to hold the pitch. Other than the tuning, the first
> thing that is necessary it to replace the hammers. My question is, is it
> worth it? Replacing the hammers would go a long way to restoring the
> tone, although the strings probably should also be replaced because the
> bass strings are still the steel type. I gather that the owners don't
> really want to spend too much on the piano.
>
> I also have a second question. When I pitch raised, no strings broke,
> and the piano seemed to respond well. The pitch droped between 20 to 30
> cents during the pitch raise of basically 50 or 60 cents. I felt this
> was acceptable, since the drop was quite even. How safe is it to raise
> the pitch to A440? Is there any way I can find out the original standard
> for the pitch of this piano? Thanks in advance for your input!
>
> Laurence Beach
> Vancouver BC
> Canada.
>
>
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