Schraffed bass strings

[Antares]

Joel Rappaport wrote:

>The disadvantage of "hex" core is in the scale design.  Of
>course you would measure the core wire from flat surface to flat
>surface, but that doesn't give you an accurate cross section area
>measurement of the core wire for your calculations.  Naturally, there
>are formulas for the area of a hegagon, but then the "diameter" is not
>the same as the area of a round core wire and special calculations would
>have to be made when designing up replacement wires, let's say.  Is it
>that far off?  Does it make that much difference?  I don't know.  This
>is what was explained to me at the Scale Design class in Ludwigsburg,
>Germany at school.  We were urged not to mix the design of round and hex
>cores.

Antares writes:

There are some piano factories using exclusively round core wire. It
sounds better but I do not know why. Is there somewhere on this globe a
brilliant mind with an answer? (see, a brilliant mind alone is not enough)