Pitch Raise Sequence

[Farrell]

Michel suggested:
> It is certainly possible to pitch raise starting from C88 but, to have a
> satifactory result, not only you would have to raise the treble by the
same
> amount anyway than if you would have started from A0, but you would have
> also to calculate the amount of drift in the bass before doing anything in
> order to establish the desired offset in the tenor and in the treble.
>
> Well, that may be a good idea if you charge your tunings on an hourly
basis.
>   :-)

So  you suggest tuning on an hourly basis???? I guess that would solve my
problem about taking two hours to tune the old Lester spinet! Just kidding.
;-) You may be right about the points you raise though.

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Michel Lachance" <michel_lachance@hotmail.com>
To: <pianotech@ptg.org>
Sent: Saturday, September 09, 2000 8:03 PM
Subject: Re: Pitch Raise Sequence


> Terry,
>
> The reasoning about starting at the top because there are usually more
> decreases in pitch that in the bass has some relevancy, but it wouldn't
work
> effectively.
>
> We shouldn't consider cents in the bass and in the treble as two sides of
an
> equation because they don't mean the same thing.  There are lots of
tension
> in the bass, less in the tenor section and even less in the treble.  It
> means that if you raise for example the bass section by 20 cents, it will
> have a higher drop effect on the rest of the piano than if you would raise
> the treble by the same amount.
>
> The idea of starting from A0 comes from the fact that you are better to
> start from the strings have more drop effect on the rest of the piano and
> finish by those that have less drop effect, all this in order to have a
more
> stable and a more predictable result.
>
> It is certainly possible to pitch raise starting from C88 but, to have a
> satifactory result, not only you would have to raise the treble by the
same
> amount anyway than if you would have started from A0, but you would have
> also to calculate the amount of drift in the bass before doing anything in
> order to establish the desired offset in the tenor and in the treble.
>
> Well, that may be a good idea if you charge your tunings on an hourly
basis.
>   :-)
>
> Michel Lachance, RPT