One pass Large Pitch Raises Safe?

[Farrell]

Ditto

In fact, when a PR will be more than about 70 cents, I will do at least two
PR passes, with the first pass targeting standard pitch. To cite an extreme
example, even if the piano were 300 cents flat, I would start at A0 and
bring it right up to standard pitch (I just use a saved tuning in my ETD
(VT) of a similar piano). Then I would just continue up the scale in similar
fashion. Of course, when doing it that way, after the first pass, if
starting out at 300 cents flat, the high treble might still be around 100
cents flat - except for C88 of course!

Terry Farrell

----- Original Message ----- 
From: "Patrick C. Poulson" <pcpoulso@pacbell.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Monday, May 31, 2004 11:53 PM
Subject: Re: One pass Large Pitch Raises Safe?


> Andrew: If that were the case, how could you ever bring a restrung piano
up
> to pitch without and endless series of minor adjustments? I don't believe
> that a large pitch raise is of any danger to a well cast plate. The
> procedure of tuing all the As, then all the Cs and so on is unnecessarily
> time consuming and overly cautious. I have done many, many major pitch
> raises without any problems, as, I am sure, have most of the members of
thsi
> list.
> Patrick C. Poulson
> Registered Piano Technician
> Piano Technicians Guild
> ----- Original Message ----- 
> From: "Andrew & Rebeca Anderson" <anrebe@zianet.com>
> To: <davidlovepianos@earthlink.net>; "Pianotech" <pianotech@ptg.org>
> Sent: Monday, May 31, 2004 7:45 PM
> Subject: One pass Large Pitch Raises Safe?
>
>
> > I've been following a discussion regarding a large pitch-raise of 100
> cents
> > or more being done in one pass.  Is this safe?  Do you run the risk of
> > damaging a plate by, say, concentrating tension in one area as you begin
> to
> > pull the pitch up.  I'm not talking about strings which are risky in
their
> > own way.  I've understood that when there is such a large tension
> > adjustment to be made that it is safer to spread it out as octaves, such
> as
> > all the A's then all of the E's then all of the C's, then fill in the
rest
> > after which you do a fine tune.  Am I being overly cautious?
> >
> > Andrew
> >
> > _______________________________________________
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> >
>
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