Thanks to all for comments
Unfortunately Gmail has decided to put Pianotech messages into Spam
and I've only just seen them
Eventually I did a video about these agraffes. Lube won't help. The
pressure on the strings is such that the newly restrung strings shows
mangling and flattening having had to be dragged through the agraffes
on restringing - and the tech who sold the piano told the customer
that it was bad to put the instrument through tunings too often -
clearly knowing a thing or two about metal fatigue caused by the
dragging through the agraffes.
https://www.youtube.com/watch?v=k9X2lAcrA0QIt wasn't actually a couple of days - I arrived in the evening and got
aggravated in the course of a pitch raise and then the next day was
tuning to one unequal temperament and then retuning to a stronger
sounding curry with more chillis in the mix.
The art of tuning these instruments is to be vigilant with the tuning
lever at 12 o'clock and to tap it one way or the other, probably in
the nature of an impact lever.
Best wishes
David P
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David Pinnegar, B.Sc., A.R.C.S.
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+44 1342 850594
Original Message:
Sent: 10/2/2023 2:07:00 PM
From: David Pinnegar
Subject: Tuning Bechstein uprights - agraffes aggravating
In tuning an upright Bechstein Model III I came across these agraffes
I wish I hadn't. With a new pinblock with tight pins you can't tell whether the force on your tuning lever is fighting against friction of pin in block or string through agraffe . . . and with pin wobble one has to be strict about tuning at the 12 o'clock position. A quality tuning has thus just taken me embarrassingly and tediously longer than it should.
Best wishes
David P
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David Pinnegar BSc ARCS
Hammerwood Park, East Grinstead, Sussex, UK
+44 1342 850594
"High Definition" Tuning
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