Meter: Difference between revisions

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m FloraC moved page Meter comma to Meter over redirect: Primary name is "meter"
m -typo and update keys
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The '''meter''', also known as the '''metric comma''' or the '''meter comma''', is an [[unnoticeable comma|unnoticeable]] [[7-limit]] [[comma]] with a ratio of '''703125/702464''' and a value of approximately 1.6 cents. It is the difference between a stack of three [[225/224|septimal kleismas]] and a [[81/80|syntonic comma]].  
The '''meter''', also known as the '''metric comma''' or the '''meter comma''', is a [[unnoticeable comma|unnoticeable]] [[7-limit]] [[comma]] with a ratio of '''703125/702464''' and a value of approximately 1.6 cents. It is the difference between a stack of three [[225/224|septimal kleismas]] and a [[81/80|syntonic comma]].  


== Temperaments ==
== Temperaments ==
Line 13: Line 12:


=== Metric (31 & 171 & 323) ===
=== Metric (31 & 171 & 323) ===
Subgroup: 2.3.5.7
[[Subgroup]]: 2.3.5.7


[[Comma list]]: 703125/702464
[[Comma list]]: 703125/702464
Line 19: Line 18:
[[Mapping]]: [{{val| 1 0 2 1 }}, {{val| 0 1 1 3 }}, {{val| 0 0 -3 -7 }}]
[[Mapping]]: [{{val| 1 0 2 1 }}, {{val| 0 1 1 3 }}, {{val| 0 0 -3 -7 }}]


[[POTE generator]]s: ~3/2 = 701.8766, ~75/56 = 505.2613
[[Optimal tuning]] ([[POTE]]): ~3/2 = 701.8766, ~75/56 = 505.2613


{{Val list|legend=1| 12, 19, 31, 81, 90, 102d, 109, 121, 140, 152, 171, 665, 836, 1007, 2185, 3192c }}
{{Val list|legend=1| 12, 19, 31, 81, 90, 102d, 109, 121, 140, 152, 171, 665, 836, 1007, 2185, 3192c }}

Revision as of 16:13, 14 November 2022

Interval information
Ratio 703125/702464
Factorization 2-11 × 32 × 57 × 7-3
Monzo [-11 2 7 -3
Size in cents 1.628279¢
Names meter,
metric comma,
meter comma
FJS name [math]\displaystyle{ \text{5d}{-4}^{5,5,5,5,5,5,5}_{7,7,7} }[/math]
Special properties reduced
Tenney height (log2 nd) 38.8455
Weil height (log2 max(n, d)) 38.8468
Wilson height (sopfr(nd)) 84
Comma size unnoticeable
Open this interval in xen-calc

The meter, also known as the metric comma or the meter comma, is an unnoticeable 7-limit comma with a ratio of 703125/702464 and a value of approximately 1.6 cents. It is the difference between a stack of three septimal kleismas and a syntonic comma.

Temperaments

Tempering it out leads to the metric temperament, which splits the syntonic comma into three equal parts, one for the septimal kleisma, and two for the septimal semicomma.

See metric microtemperaments for a collection of rank-2 temperaments where it is tempered out.

Metric (31 & 171 & 323)

Subgroup: 2.3.5.7

Comma list: 703125/702464

Mapping: [1 0 2 1], 0 1 1 3], 0 0 -3 -7]]

Optimal tuning (POTE): ~3/2 = 701.8766, ~75/56 = 505.2613

Template:Val list

Badness: 0.1498 × 10-3

See also