Pitch Anticipation

[Jon Page]

At 08:23 AM 11/26/98 -0400, you wrote:
>Tune practice room pianos to A-440.
>
>I used to make minor changes to A-440 and when I did, the key factor in
>following the pitch with seasonal changes was the bass section.  If the
>bass doesn't change much, I can't see raising it sharp in the summer to
>follow the dramatic rise in humid summer conditions or lowering it in
>the winter becasue they've got the heat cranked way up.  While pin
>torque may be compromised with excessive corrections, dry heat is more
>likely the cause, and isn't it likely that loose pins will show up in
>the bass first?
>
>Carl Root, RPT
>
>
>
Most of the basses have been repinned with 6's and sprinkled with 7's.

The bass and treble tuning doesn't change as much as the tenor from
seasonal changes, so I will lower the tenor slightly so as not to cause the
extremes to have to be lowered come Winter. And I do not change the
tension so much which would necessitate another tuning.
But it is still maybe 4 beats sharp and settles down over the months.

For the average setting, a tension change of a few beats will still produce
an appreciable tuning. I would draw the line at 4 beats per second.


Jon Page
Harwich Port, Cape Cod, Mass. (jpage@capecod.net)
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