Tour of regular temperaments: Difference between revisions
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== Clans defined by a 3.5.7 (yaza noca) comma == | == Clans defined by a 3.5.7 (yaza noca) comma == | ||
These are defined by a yaza noca or 7-limit-no-twos comma. Any no-twos comma is a ratio of odd numbers. If no other commas are tempered out, It is a non-octave tuning, with a period of a perfect 12th or tritave, 3/1 (or some fraction of that). See also [[subgroup temperaments]]. The pergen's multigen (the 2nd term, omitting any fraction) is always a 5-limit-no-twos ratio such as 5/3, 9/5, 25/9, etc. | These are defined by a yaza noca or 7-limit-no-twos comma. Any no-twos comma is a ratio of odd numbers. If no other commas are tempered out, It is a non-octave tuning, with a period of a perfect 12th or tritave, 3/1 (or some fraction of that). See also [[subgroup temperaments]]. The pergen's multigen (the 2nd term, omitting any fraction) is always a 5-limit-no-twos ratio such as 5/3, 9/5, 25/9, etc. In a noca subgroup, "compound" means increased by 3/1 not 2/1. | ||
=== [[Arcturus clan|Arcturus or Rutribiyo Noca clan]] (P12, M6) === | === [[Arcturus clan|Arcturus or Rutribiyo Noca clan]] (P12, M6) === | ||
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===[[Sensamagic clan|Sensamagic or Zozoyo Noca clan]] (P12, M6/2)=== | ===[[Sensamagic clan|Sensamagic or Zozoyo Noca clan]] (P12, M6/2)=== | ||
This 3.5.7 clan tempers out the sensamagic comma {{Monzo|0 -5 1 2}} = 245/243. The generator is ~9/7, and two generators equals the noca major 6th = ~5/3. | This 3.5.7 clan tempers out the sensamagic comma {{Monzo|0 -5 1 2}} = 245/243. The generator is ~9/7, and two generators equals the noca major 6th = ~5/3. | ||
===[[Betelgeuse clan|Betelgeuse or Satritrizo-agugu Noca clan]] (P12, c<sup>3</sup>M6) === | |||
This 3.5.7 clan tempers out the Betelgeuse comma {{Monzo|0 -13 -2 9}} = 40353607/39858075. The generator is ~3645/2401, two generators equals ~7/3, and nine generators equals the noca triple-compound major 6th = ~45/1. | |||
===[[Gariboh clan|Gariboh or Triru-aquinyo Noca clan]] (P12, M6/3)=== | ===[[Gariboh clan|Gariboh or Triru-aquinyo Noca clan]] (P12, M6/3)=== | ||
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===[[Mirkwai clan|Mirkwai or Quinru-aquadyo Noca clan]] (P12, cm7/5)=== | ===[[Mirkwai clan|Mirkwai or Quinru-aquadyo Noca clan]] (P12, cm7/5)=== | ||
This 3.5.7 clan tempers out the mirkwai comma, {{Monzo|0 3 4 -5}} = 16875/16807. The generator is ~7/5, four generators equals ~27/7, and five generators equals the noca compound minor 7th = ~27/5 | This 3.5.7 clan tempers out the mirkwai comma, {{Monzo|0 3 4 -5}} = 16875/16807. The generator is ~7/5, four generators equals ~27/7, and five generators equals the noca compound minor 7th = ~27/5. | ||
===[[Procyon clan|Procyon or Sasepzo-atrigu Noca clan]] (P12, m7/7)=== | ===[[Procyon clan|Procyon or Sasepzo-atrigu Noca clan]] (P12, m7/7)=== |