pitch raise and stability

[Farrell]

Pitch change is most likely string segments equalizing tension. Most techs
believe in a FAST pitch raise that will typically not include any
significant effort to stabilize the string at the new tension.

I know I am in the minority (all alone?) in usually taking 25 to 40 minutes
to do a pitch raise (up to about 75 cents) with my SAT. I find that because
the SAT can help me come SOOOOOO close to the final pitch (usually within 2
cents on a 25 cent pitch raise) it seems worth the little extra time to be
reasonably accurate with the hammer, and work the string a bit to equalize
tension and settle it down.

I won't bother asking for comments on this approach! :-)  (It may just be an
excuse for being a bit slow!)

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

----- Original Message -----
From: <drose@dlcwest.com>
To: <pianotech@ptg.org>
Sent: Wednesday, July 19, 2000 1:37 AM
Subject: pitch raise and stability


> Hi all,
>
> I am still on the road but ended up tuning a piano for a friend. I decided
to do a single pass pitch correction on a 40" aeolian product from the
sixties.
>
> The pitch at A4 immediately after the pitch correction (one single pass
using Reyburn Cyber Tuner) Pitch correction at A4 was 47 cents.
>
> Immediately after the tuning I measured pitch and wrote it down. Six hours
later I checked the pitch again, and pitch had *risen* over 2 cents at A4.
>
> Comments?
>