26-comma: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Jerdle (talk | contribs)
m Fixed link
BudjarnLambeth (talk | contribs)
mNo edit summary
 
(2 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{Infobox Interval
{{Infobox Interval
| Name = 26-comma
| Name = 26-comma, Pythagorean inverse triple-diminished second
| Ratio = 2541865828329/2199023255552
| Ratio = 2541865828329/2199023255552
| Color name = Wa-26, L<sup>4</sup>w-2
| Color name = Wa-26, L<sup>4</sup>w-2
| Comma = technically
| Comma = true
}}
}}
The '''26-comma''' is a [[3-limit]] [[semifourth]] that acts as a comma in certain temperaments. It is the difference between 26 perfect fifths and 15 octaves, as well as being two [[Pythagorean commas|Pythagorean comma]] sharp of [[9/8]].
The '''26-comma''' is a [[3-limit]] [[semifourth]] that acts as a comma in certain temperaments. It is the difference between 26 perfect fifths and 15 octaves, as well as being two [[Pythagorean comma|Pythagorean commas]] sharp of [[9/8]].  


While it is exceptionally large for a comma (two of them make a near-perfect fourth, off by the small [[53-comma]]), it is tempered out in [[26edo]], because of that temperament's narrow fifths.
While it is exceptionally large for a comma (two of them make a near-perfect fourth, off by the small [[53-comma]]), it is tempered out in [[26edo]], because of that temperament's narrow fifths.


As an untempered interval, it approximates intervals like [[15/13]], and is the simplest Pythagorean interval of this size. As such, it could also be known as '''the''' Pythagorean semifourth.
Used as an interval in its own right, it is the '''Pythagorean inverse triple-diminished second'''. It approximates intervals like [[15/13]], and is the simplest Pythagorean interval of this size. As such, it could also be known as the ''Pythagorean semifourth''.
 
[[Category:Commas named systematically]][[Category:Commas named after their interval size]]

Latest revision as of 06:22, 3 November 2024

Interval information
Ratio 2541865828329/2199023255552
Factorization 2-41 × 326
Monzo [-41 26
Size in cents 250.83¢
Names 26-comma,
Pythagorean inverse triple-diminished second
Color name Wa-26, L4w-2
FJS name [math]\displaystyle{ \text{ddd}{-2} }[/math]
Special properties reduced,
reduced harmonic
Tenney height (log2 nd) 82.209
Weil height (log2 max(n, d)) 82.4181
Wilson height (sopfr(nd)) 160
Comma size large
Open this interval in xen-calc

The 26-comma is a 3-limit semifourth that acts as a comma in certain temperaments. It is the difference between 26 perfect fifths and 15 octaves, as well as being two Pythagorean commas sharp of 9/8.

While it is exceptionally large for a comma (two of them make a near-perfect fourth, off by the small 53-comma), it is tempered out in 26edo, because of that temperament's narrow fifths.

Used as an interval in its own right, it is the Pythagorean inverse triple-diminished second. It approximates intervals like 15/13, and is the simplest Pythagorean interval of this size. As such, it could also be known as the Pythagorean semifourth.