Dan Stearns's pitch continuum

[David J. Finnamore, TD 155.6:]
> Really, how does one practically implement any tuning
> system with more than 30-some notes per octave? Even a
> "full-size" keyboard would only cover less than 2/3 of an
> octave in 144t-ET.

Erv Wilson's hexagonal modification of Bosanquet's
keyboard design is capable of accomodating many different
tuning systems and scale formations, and one of his
favorites is what he calls 'modulus 41' - he uses this
term because it can be 41-ET or a JI tuning (or some other
tuning) which uses 41 notes per 'octave'.

Because of the unique repeating geometrical design,
it is possible to tune this keyboard to scales even much
larger than that, with no detrimental effect on the
playing ability. Wilson has insisted on keeping the
keyboard generalized to accomodate many tunings.

You can see diagrams at the LucyTuning site:
http://www.harmonics.com/lucy/lsd/hexboard.html

or more detailed descriptions at the Wilson Archives:
http://www.anaphoria.com/xen1.html
http://www.anaphoria.com/xen2.html
http://www.anaphoria.com/xen3.html

Joseph L. Monzo....................monz@juno.com
http://www.ixpres.com/interval/monzo/homepage.html
|"...I had broken thru the lattice barrier..."|
| - Erv Wilson |
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monz@juno.com wrote:

> From: monz@juno.com
>
> [David J. Finnamore, TD 155.6:]
> > Really, how does one practically implement any tuning
> > system with more than 30-some notes per octave? Even a
> > "full-size" keyboard would only cover less than 2/3 of an
> > octave in 144t-ET.
>
> Erv Wilson's hexagonal modification of Bosanquet's
> keyboard design is capable of accomodating many different
> tuning systems and scale formations, and one of his
> favorites is what he calls 'modulus 41' - he uses this
> term because it can be 41-ET or a JI tuning (or some other
> tuning) which uses 41 notes per 'octave'.

David and Joe!
As fate would have it, we are in the process of preparing for the
Wilson Archive a set of Keyboard templates for different sections of the
scale tree! Also in the works-the Lambdomas and Hanson's Article from
xenharmonikon.(Wilson is the custodian of Larry's archive). It should be
kept in mind that these keyboard layouts are adaptable to mallet percussion
instruments as my own work illustrates!
-- Kraig Grady
North American Embassy of Anaphoria Island
www.anaphoria.com