Bass bridge question

[Calin Tantareanu]

Of course Del, you're right here. Now that I thought a little more about the
problem, it certainly shouldn't be called a resonator since it's not mean't
to resonate at particular frequencies, but to transmit all the vibrations of
the strings.

> I smile (sadly) when I see the video clips of some worker carefully
tapping
> each board before selecting it of use in a particular soundboard. The

So, what's this knocking the boards all about? Why are they doing it?

Calin