Hexany: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Fredg999 (talk | contribs)
m Typography edit
Fredg999 (talk | contribs)
Simplified lead section, recategorization
Line 1: Line 1:
A '''hexany''' is a 6-note scale built using all the possible combinations of 2 intervals from a given set of 4 intervals. It is the simplest case of a [[combination product set]].
A '''hexany''' is a 6-note scale built using all the possible combinations of 2 intervals from a given set of 4 intervals. It is the simplest case of a [[combination product set]].
The invention of hexanies, and more generally of combination product sets, is attributed to [[Erv Wilson]].


== Example ==
== Example ==
Line 16: Line 14:
* [http://anaphoria.com/grady1-1.pdf ''Ervin Wilson's Hexany''] by Kraig Grady
* [http://anaphoria.com/grady1-1.pdf ''Ervin Wilson's Hexany''] by Kraig Grady


[[Category:Hexany| ]] <!-- main article -->
[[Category:Hexanies| ]] <!-- main article -->
[[Category:Scale families]]
[[Category:6-tone scales]]
[[Category:6-tone scales]]
[[Category:todo:expand]]
[[Category:todo:expand]]

Revision as of 21:28, 7 August 2021

A hexany is a 6-note scale built using all the possible combinations of 2 intervals from a given set of 4 intervals. It is the simplest case of a combination product set.

Example

Here is a step-by-step construction of the 1-3-5-7 hexany (i.e. using 1/1, 3/1, 5/1, and 7/1):

  1. Multiply together each pair of intervals (to find the combinations):
    {1 × 3, 1 × 5, 1 × 7, 3 × 5, 3 × 7, 5 × 7}
    = {3, 5, 7, 15, 21, 35};
  2. Divide each product by the smallest element of the previous set (to base the scale on 1/1):
    {3/3, 5/3, 7/3, 15/3, 21/3, 35/3}
    = {1/1, 5/3, 7/3, 5/1, 7/1, 35/3};
  3. Octave-reduce each element:
    {1/1, 5/3, 7/6, 5/4, 7/4, 35/24};
  4. Sort the elements in ascending order:
    {1/1, 7/6, 5/4, 35/24, 5/3, 7/4};
  5. Replace the unison (1/1) by the octave (2/1) for a Scala-compatible octave-repeating scale:
    {7/6, 5/4, 35/24, 5/3, 7/4, 2/1}.

External links