Highly composite equal division: Difference between revisions
m Style and +category |
ArrowHead294 (talk | contribs) |
||
(3 intermediate revisions by 2 users not shown) | |||
Line 15: | Line 15: | ||
== Highly composite edo == | == Highly composite edo == | ||
[[12edo]], the predominantly used tuning in the world today, is the only known | [[12edo]], the predominantly used tuning in the world today, is currently the only known non-trivial highly composite edo that holds any zeta records and the only one with a step size above the [[just-noticeable difference]]. Others have not been found yet, and given the lack of such edos until hundreds of thousands it is likely if another one is found, it would not be of any harmonic use since its amount of steps would be astronomical. | ||
=== The first 41 highly composite edos === | === The first 41 highly composite edos === | ||
Line 27: | Line 27: | ||
== Highly composite edf == | == Highly composite edf == | ||
Highly composite edfs have a possible usage in Georgian-inspired music. Since [[Kartvelian scales]] are created by dividing the perfect fifth into an arbitrary number of steps, and complementing that with dividing 4/3 into an arbitrary number of steps, edos which correspond to highly composite edfs have a high density of such scales per their size. | Highly composite edfs have a possible usage in Georgian-inspired music. Since [[Kartvelian scales]] are created by dividing the perfect fifth into an arbitrary number of steps, and complementing that with dividing 4/3 into an arbitrary number of steps, edos which correspond to highly composite edfs have a high density of such scales per their size. | ||
Line 36: | Line 34: | ||
The following is a table of first 19 highly composite/superabundant edfs and their corresponding edos. | The following is a table of first 19 highly composite/superabundant edfs and their corresponding edos. | ||
{| class="wikitable" | {| class="wikitable right-1 right-2 center-3" | ||
|+Table of first highly melodic edf–edo correspondences | |+Table of first highly melodic edf–edo correspondences | ||
! Edf | ! Edf | ||
Line 140: | Line 138: | ||
== Generalization == | == Generalization == | ||
{{Todo|inline=1|split page|comment=Move the definitions to [[Highly composite number]] and discuss the properties without regards to equal divisions. }} | |||
=== Extensions === | === Extensions === | ||
It is possible to define ''N''-generalized highly composite numbers as a set of numbers, for which sum of powers of divisors relative to the number is greater than all the ones before it. This means that 0-generalized highly composite numbers are plain highly composite numbers, 1-generalized are superabundant numbers, etc. | It is possible to define ''N''-generalized highly composite numbers as a set of numbers, for which sum of powers of divisors relative to the number is greater than all the ones before it. This means that 0-generalized highly composite numbers are plain highly composite numbers, 1-generalized are superabundant numbers, etc. |