high humidity (was tapping strings)

[Michael Jorgensen]

Hello,
     Is that because the construction of laminated soundboard pianos also
tended to be poor in other ways?  How much of seasonal pitch fluctuation
is related to other things like plate, pinblock fit, scale design, bracing
support,  etc?
-Mike

Fred Sturm wrote:

> This discussion brings another anomoly to mind. When laminated
> soundboards first became common, I expected that, whatever the sonic
> results, at least pitch would be more stable in response to humidity
> swings, because the board would expand/shrink much less. But experience
> hasn't born this out. At least my own experience seems to show no
> difference whatsoever in pitch variation in response to humidity swings
> between solid and laminated boards.
>         Anyone care to comment?
> Regards,
> Fred Sturm
> University of New Mexico