I Raise the pitch...on the pitch raise.

David ilvedson ilvey@a.crl.com
Tue, 08 Apr 1997 09:35:03 +0000


> Date:          Tue, 08 Apr 1997 06:50:55 -0700
> From:          Warren Fisher <fish@COMMUNIQUE.NET>
> Subject:       Re: I Raise the pitch...on the pitch raise.
> To:            pianotech@byu.edu
> Reply-to:      pianotech@byu.edu

Hi Warren,

Yep, I always tap it down before bringing it up and your right
that has helped.  I have also occasionally put a drop of liquid
wrench on the tuning pin coil on a real scary looking piano.

David ilvedson, RPT
Pacifica, CA

> David ilvedson wrote:
> >
> I have a phobia towards broken strings.  I would rather
> > raise a bit than lower a bit.
>
> David,
>
> On the initial pitch raise do you break the tuning pin flat first before
> you go up in pitch?  This simple procedure reduced my string breakage on
> pitch raises by about 80%.  It will also allow you to add 10% of the
> original measured flatness to the high treble section (around F5 and
> above) to offset excessive flatness in that area.  I use 12.5% overpull
> in the bass and this leaves it slightly flat afterwards.  The problem
> with not overpulling at all is that many times you may be still chasing
> the pitch several tunings later and that there will be enough drop off
> in the treble to destroy your octave stretching up there.  I find it to
> be more stable in the long run to tune it down from a slightly sharp
> position after a pitch raise.  Just my opinion.
>
> Warren
> --
> Home of The Humor List
> Warren D. Fisher
> fish@communique.net
> Registered Piano Technician
> Piano Technicians Guild
> New Orleans Chapter 701
>
>




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