pull up to pitch or leave it there?

[Tom Driscoll]

-----Original Message-----
From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org] On Behalf
Of Stephen Airy
Sent: Saturday, August 10, 2002 1:10 AM
To: Piano Tech list - PTG
Subject: pull up to pitch or leave it there?

When you're tuning an older piano, what are some things you consider
when deciding whether or not to attempt to pull the piano up to concert
pitch or to leave it where it is?  (assuming the piano is no more than
50 cents (1/4 step) flat) < SNIP>

	Stephen, we are talking about a modern piano. Full plate with no
structural issues. . I look for broken or previously replaced strings.
Rust is certainly a factor, but even rusty strings can be pitch raised
with success. Tighten all plate screws as possible, pull up a few
strings in each section to test, explain that the possibility of string
breakage exists, but you will take precautions to avoid breakage. Inform
the client of possible cost of string replacement but emphasize the
advantages of having the piano at pitch. The improvement of bass tone on
lower notes is a good example. Lubricate at the V-bar and pressure bar
carefully with protek (Very careful to avoid tuning pins---and NO
silicon based lubes any where near the piano! Drop pitch on each string
slightly before pulling up and go to it. I use the Defebaugh-Coleman
anticipated drop method, but the actual technique would be best
discussed on a separate thread. 
	If the piano has previous string breakage or your test breaks
another string it may be time to reevaluate. The needs of the client and
their budget are to be considered also. The eighty year old lady playing
a few hymns once a month has a different need than a young piano student
in need of correct ear training.
IMHO too many pianos are not pitch raised out of fear. Nobody likes
replacing strings but it rarely happens with judgment and precaution.
	Antique's, birdcages, squares----Then I'm scared and run to
Starbucks instead of pitch raising!
	Good luck
	Tom Driscoll