Ploidacot/Beta-hexacot: Difference between revisions
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{{Infobox ploidacot|Ploids=1|Shears=2|Cots=6|Pergen=[P8, ccP5/6]|Forms=16, 23, 30, 37|Title=Beta-hexacot|Wedgie=6}} | {{Infobox ploidacot|Ploids=1|Shears=2|Cots=6|Pergen=[P8, ccP5/6]|Forms=16, 23, 30, 37|Title=Beta-hexacot|Wedgie=6}} | ||
'''Beta-hexacot''' is a temperament archetype where the generator is an acute fourth of about | '''Beta-hexacot''' is a temperament archetype where the generator is an acute fourth of about 516–518{{c}}, six of which make [[6/1]] (sixth harmonic, two octaves above a perfect fifth), and the period is a [[2/1]] octave. Beta-hexacot temperaments also include all [[Ploidacot/Dicot|dicot]] and [[Ploidacot/Omega-tricot|omega-tricot]] intervals. Beta-hexacot temperaments typically generate the [[7L 2s]], [[7L 9s]], and [[7L 16s]] MOS scales. | ||
== Intervals and notation == | == Intervals and notation == | ||
While there is no agreed-upon notation system for beta-hexacot, the following is based on interpreting the generator as an acute fourth, and allowing for an ^ or v to stand for 1/6 of a chromatic semitone, so {{nowrap|^^^Eb {{=}} vvvE {{=}} Ed}}. | |||
{| class="wikitable" | {| class="wikitable" | ||
| Line 21: | Line 21: | ||
| −23 | | −23 | ||
| 109.172 | | 109.172 | ||
| | | ^Db | ||
| | | | ||
|- | |- | ||
| −22 | | −22 | ||
| 626.165 | | 626.165 | ||
| | | ^^Gb | ||
| | | | ||
|- | |- | ||
| Line 36: | Line 36: | ||
| −20 | | −20 | ||
| 460.150 | | 460.150 | ||
| | | vvF | ||
| | | | ||
|- | |- | ||
| −19 | | −19 | ||
| 977.142 | | 977.142 | ||
| | | vBb | ||
| | | | ||
|- | |- | ||
| Line 51: | Line 51: | ||
| −17 | | −17 | ||
| 811.127 | | 811.127 | ||
| | | ^Ab | ||
| | | | ||
|- | |- | ||
| −16 | | −16 | ||
| 128.120 | | 128.120 | ||
| | | ^^Db | ||
| | | | ||
|- | |- | ||
| Line 66: | Line 66: | ||
| −14 | | −14 | ||
| 1162.105 | | 1162.105 | ||
| | | vvC | ||
| | | | ||
|- | |- | ||
| −13 | | −13 | ||
| 479.097 | | 479.097 | ||
| | | vF | ||
| | | | ||
|- | |- | ||
| Line 81: | Line 81: | ||
| −11 | | −11 | ||
| 313.082 | | 313.082 | ||
| | | ^Eb | ||
| | | | ||
|- | |- | ||
| −10 | | −10 | ||
| 830.075 | | 830.075 | ||
| | | ^^Ab | ||
| | | | ||
|- | |- | ||
| Line 96: | Line 96: | ||
| −8 | | −8 | ||
| 664.060 | | 664.060 | ||
| | | vvG | ||
| | | | ||
|- | |- | ||
| −7 | | −7 | ||
| 1181.052 | | 1181.052 | ||
| | | vC | ||
| | | | ||
|- | |- | ||
| Line 111: | Line 111: | ||
| −5 | | −5 | ||
| 1015.037 | | 1015.037 | ||
| | | ^Bb | ||
| | | | ||
|- | |- | ||
| −4 | | −4 | ||
| 332.030 | | 332.030 | ||
| | | ^^Eb | ||
| | | | ||
|- | |- | ||
| Line 126: | Line 126: | ||
| −2 | | −2 | ||
| 166.015 | | 166.015 | ||
| | | vvD | ||
| | | | ||
|- | |- | ||
| −1 | | −1 | ||
| 683.007 | | 683.007 | ||
| | | vG | ||
| | | | ||
|- | |- | ||
| Line 141: | Line 141: | ||
| 1 | | 1 | ||
| 516.993 | | 516.993 | ||
| | | ^F | ||
| | | | ||
|- | |- | ||
| 2 | | 2 | ||
| 1033.985 | | 1033.985 | ||
| | | ^^Bb | ||
| | | | ||
|- | |- | ||
| Line 156: | Line 156: | ||
| 4 | | 4 | ||
| 867.970 | | 867.970 | ||
| | | vvA | ||
| | | | ||
|- | |- | ||
| 5 | | 5 | ||
| 184.963 | | 184.963 | ||
| | | vD | ||
| | | | ||
|- | |- | ||
| Line 171: | Line 171: | ||
| 7 | | 7 | ||
| 18.948 | | 18.948 | ||
| | | ^C | ||
| | | | ||
|- | |- | ||
| 8 | | 8 | ||
| 535.940 | | 535.940 | ||
| | | ^^F | ||
| | | | ||
|- | |- | ||
| Line 186: | Line 186: | ||
| 10 | | 10 | ||
| 369.925 | | 369.925 | ||
| | | vvE | ||
| | | | ||
|- | |- | ||
| 11 | | 11 | ||
| 886.918 | | 886.918 | ||
| | | vA | ||
| | | | ||
|- | |- | ||
| Line 201: | Line 201: | ||
| 13 | | 13 | ||
| 720.903 | | 720.903 | ||
| | | ^G | ||
| | | | ||
|- | |- | ||
| 14 | | 14 | ||
| 37.895 | | 37.895 | ||
| | | ^^C | ||
| | | | ||
|- | |- | ||
| Line 216: | Line 216: | ||
| 16 | | 16 | ||
| 1071.880 | | 1071.880 | ||
| | | vvB | ||
| | | | ||
|- | |- | ||
| 17 | | 17 | ||
| 388.873 | | 388.873 | ||
| | | vE | ||
| | | | ||
|- | |- | ||
| Line 231: | Line 231: | ||
| 19 | | 19 | ||
| 222.858 | | 222.858 | ||
| | | ^D | ||
| | | | ||
|- | |- | ||
| 20 | | 20 | ||
| 739.850 | | 739.850 | ||
| | | ^^G | ||
| | | | ||
|- | |- | ||
| Line 246: | Line 246: | ||
| 22 | | 22 | ||
| 573.835 | | 573.835 | ||
| | | vvF# | ||
| | | | ||
|- | |- | ||
| 23 | | 23 | ||
| 1090.828 | | 1090.828 | ||
| | | vB | ||
| | | | ||
|- | |- | ||
| Line 261: | Line 261: | ||
== Temperament interpretations == | == Temperament interpretations == | ||
An obvious interpretation for beta-hexacot is [[gravity]], where the generator is [[27/20]], two of which make [[20/11]], three make [[11/9]]~[[27/22]] above an octave, and six make a perfect fifth above two octaves. There are some extensions for the full 11-limit: marvo (65d & 72), zarvo (65 & 72), and gravid (58 & 65). | An obvious interpretation for beta-hexacot is [[gravity]], where the generator is [[27/20]], two of which make [[20/11]], three make {{nowrap|[[11/9]]~[[27/22]]}} above an octave, and six make a perfect fifth above two octaves. There are some extensions for the full 11-limit: marvo ({{nowrap|65d & 72}}), zarvo ({{nowrap|65 & 72}}), and gravid ({{nowrap|58 & 65}}). | ||
[[Category:Ploidacots|Beta-hexacot]] | [[Category:Ploidacots|Beta-hexacot]] | ||