tuning with Dampp-Chaser

[Tony Caught]

Hi Charles,

Switch off any fans, stop all draughts, these will effect the tune but I
doubt that the effect would be noticeable with the humidity variation in the
time you mentioned.
You mentioned that 1/2 hour practicing setting temperament, if some note
have drifted up and some down, tis not the humidity or heat, practice
setting the tuning pin. If they have all dropped by an even amount then it
may be the humidity.

Regards,

Tony Caught
Darwin
Australia
caute@optusnet.com.au


----- Original Message -----
From: "Charles Neuman" <piano@charlesneuman.net>
To: <pianotech@ptg.org>
Sent: Friday, March 22, 2002 2:23 PM
Subject: tuning with Dampp-Chaser


> Any strategies on tuning when there is a D-C installed?
>
> When I open the piano, the humidity starts to change. After a while this
> affects notes I've already tuned.
>
> In my case, the humidity near the action of my vertical changes from 42%
> to 36%. After a half hour or so of practicing setting a temperament, my
> first notes have drifted a bit from where they were. I assume the humidity
> change is the problem, but I suppose it could be how I set the notes.
>
> Do people run into this problem? If so, would you recommend leaving the
> piano open for a while before tuning?
>
> Charles Neuman
>
>