Prime vs. Odd Limits

This is a question for everybody, with attention to Paul Erlich...

If we accept an odd-limit measure of dyadic consonance (and I do, more or
less), doesn't this lead to a prime-limit measure for chords?

Carl

On Fri, 18 Dec 1998, Carl Lumma wrote:
> For those of you not familiar with this, the Janko keyboard, being
> originally designed for acoustic instruments in 12tET, has keys sharing the
> same internal lever and strings (as Manuel explained). This causes the key
> travel to be longer and easier in the rows nearer to the performer, and
> shorter and harder in the rows farther from him. I think it can be agreed
> that this is undesirable. The makers of Janko pianos never solved the
> problem.
> [snip]
> Either way, can anyone come up with a different solution? It would be
> worth a great deal, I think. Might even get one in the history books (I
> think we're all already there anyway, but... :~)

I believe I mentioned Paul Vandervoort on this list a _long_ time
ago--possibly within the first year or so of its existence. Vandervoort
has made some refinements to the Janko keyboard, one of which is a
parallelogram linkage to equalize the leverage. I have a citation
somewhere of an article from the '70s about his ideas, but I haven't
found anything since then (though I haven't looked real recently), so I
don't know if he's still active.

--pH http://library.wustl.edu/~manynote
O
/\ "'Jever take'n try to give an ironclad leave to
-\-\-- o yourself from a three-rail billiard shot?"

NOTE: dehyphenate node to remove spamblock. <*>