Shallow ribs on great old boards.

[Terry]

I've yanked apart a couple old upright Knabes. Either those ribs warped over
time or they had some pretty tight radii cut into them - the ribs had quite
a bit of crown on them after removing them from the panel.

Terry Farrell


> Interesting. This may be superfluous, but I would like
> to mention that some of the best-sounding old upright
> pianos I have seen have very wide, shallow ribs. And
> no cracks in the still very "live" boards. Knabe.
> Ivers and Pond. Mason.
>      Not intending to muddy things here. I believe in
> and support the idea of rib-crowning. But how did
> these allegedly CC boards survive in Georgia for 100
> years so well? Lots of varnish?
>      Thump