14L 22s (12/1-equivalent): Difference between revisions

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3/2: Approximately the step ratio for the scale with 1/QPochhammer[1/2] as period.
3/2: Approximately the step ratio for the scale with 1/QPochhammer[1/2] as period.
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{{Category: 18-note scales}}

Revision as of 04:47, 11 February 2025

This page presents a novelty topic.

It may contain ideas which are less likely to find practical applications in music, or numbers or structures that are arbitrary or exceedingly small, large, or complex.

Novelty topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks.

Assume hemipyth[10] nominal names and intervals (and zero-indexing) unless otherwise stated. This article is meant to apply MMTM's theory on this scale, but it is attempted to be explained better here.

↖ 13L 21s⟨12/1⟩ ↑ 14L 21s⟨12/1⟩ 15L 21s⟨12/1⟩ ↗
← 13L 22s⟨12/1⟩ 14L 22s (12/1-equivalent) 15L 22s⟨12/1⟩ →
↙ 13L 23s⟨12/1⟩ ↓ 14L 23s⟨12/1⟩ 15L 23s⟨12/1⟩ ↘
┌╥┬╥┬┬╥┬╥┬┬╥┬╥┬┬╥┬┬╥┬╥┬┬╥┬╥┬┬╥┬╥┬┬╥┬┬┐
│║│║││║│║││║│║││║││║│║││║│║││║│║││║│││
││││││││││││││││││││││││││││││││││││││
└┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern LsLssLsLssLsLssLssLsLssLsLssLsLssLss
ssLssLsLssLsLssLsLssLssLsLssLsLssLsL
Equave 12/1 (4302.0 ¢)
Period 1\2 (2151.0 ¢)
Generator size(ed12/1)
Bright 5\36 to 2\14 (597.5 ¢ to 614.6 ¢)
Dark 5\14 to 13\36 (1536.4 ¢ to 1553.5 ¢)
Related MOS scales
Parent 14L 8s⟨12/1⟩
Sister 22L 14s⟨12/1⟩
Daughters 36L 14s⟨12/1⟩, 14L 36s⟨12/1⟩
Neutralized 28L 8s⟨12/1⟩
2-Flought 50L 22s⟨12/1⟩, 14L 58s⟨12/1⟩
Equal tunings(ed12/1)
Equalized (L:s = 1:1) 5\36 (597.5 ¢)
Supersoft (L:s = 4:3) 17\122 (599.5 ¢)
Soft (L:s = 3:2) 12\86 (600.3 ¢)
Semisoft (L:s = 5:3) 19\136 (601.0 ¢)
Basic (L:s = 2:1) 7\50 (602.3 ¢)
Semihard (L:s = 5:2) 16\114 (603.8 ¢)
Hard (L:s = 3:1) 9\64 (605.0 ¢)
Superhard (L:s = 4:1) 11\78 (606.7 ¢)
Collapsed (L:s = 1:0) 2\14 (614.6 ¢)

The 7L 11s (√12-equivalent) scale, also pochhammeroid (see below), colianexoid, greater f-enhar electric or greater f-enhar smitonic is a MOS scale. The notation "<√12>" means the period of the MOS is √12, disambiguating it from octave-repeating 7L 11s. The name of this period interval is called the oktokaidekatave. It is also equivalent to 14L 22s <12/1> and is the notation used in the scale tree and the MOS infobox on the right. Its basic tuning is 25ed√12 or 50ed12. However, the √12-based formulation will be used for most of this article.

The generator range is 597 to 615 cents (5\18<√12> to 2\7<√12>). The dark generator is obviously its √12-complement. Because this is a perfect eighteenth-repeating scale, each tone has an √12 perfect eighteenth above it.

The equave can range from 24/7 to 7/2, including the pure-hemipyth √12 and 1/QPochhammer[1/2]. It is because of the latter constant that Cole proposes naming this scale pochhammeroid.

Standing assumptions

The TAMNAMS system is used in this article to name 7L 11s <√12> intervals and step size ratios and step ratio ranges.

The notation used in this article is 0 Pacific-Hemipyth = 0123456789ABCDEFGH (see the section on modes below), unless specified otherwise. (Alternatively, one can use any octodecimal digit set as the numbers, as long as it is clear which set one is using.) We denote raising and lowering by a chroma (L − s, about √(256/243) using the hemipyth interpretation) by # and ♭ "flat (F molle)".

Modes

For clarity, each mode is split up into three pentachords and a trichord. There are three modes which defy this classification, having pentachords with one large step and four small steps. However, they are still included for completeness. An ambiguous mode is named after the first two pentachords.

Mode UDP Name Name origin
LsLss LsLss LsLss Lss 17|0 Atlantic-QFind The canonically first 'core' of the Colian Nexus, qfind.
LsLss LsLss LssLs Lss 16|1 Atlantic-Planet Named after PlanetN9ne.
LsLss LssLs LssLs Lss 15|2 Atlantic-Lumian This mode's first dekatave has an Atlantic pentachord and a Lumian pentachord.
LssLs LssLs LssLs Lss 14|3 Lumian-Q-Series The canonically second 'core' of the Colian Nexus, 2-analogue-related functions. Named after the Q-series.
LssLs LssLs LssLs sLs 13|4 Lumian-Moosey Named after Moosey.
LssLs LssLs sLsLs sLs 12|5 Lumian-Drone Named after DroneBetter.
LssLs sLsLs sLsLs sLs 11|6 Lumian-Pacific This mode's first dekatave has a Lumian pentachord and a Pacific pentachord.
sLsLs sLsLs sLsLs sLs 10|7 Pacific-Hemipyth The canonically third 'core' of the Colian Nexus, hemipyth.
sLsLs sLsLs sLssL sLs 9|8 Pacific-NimbleRogue Named after NimbleRogue.
sLsLs sLssL sLssL sLs 8|9 Pacific-Taliesin This mode's first dekatave has a Pacific pentachord and a Taliesin pentachord.
sLssL sLssL sLssL sLs 7|10 Taliesin-Riemannic The canonically fourth 'core' of the Colian Nexus, Riemannic, a conlang created by Cole.
sLssL sLssL sLssL ssL 6|11 Taliesin-Wwei Named after wwei47.
sLssL sLssL ssLsL ssL 5|12 Taliesin-LaundryPizza Named after LaundryPizza03.
sLssL ssLsL ssLsL ssL 4|13 Taliesin-Dresden This mode's first dekatave has a Taliesin pentachord and a Dresden pentachord.
ssLsL ssLsL ssLsL ssL 3|14 Dresden-Heav Named after Heav.
ssLsL ssLsL ssLss LsL 2|15 Subdresden-Nimrgod Named after the canonically first of three tuppers created by User:2^67-1, Nimrgod.
ssLsL ssLss LsLss LsL 1|16 Subdresden-Boris Named after the canonically second of three tuppers created by User:2^67-1, Boris Grothendieck.
ssLss LsLss LsLss LsL 0|17 Subdresden-Pergele Named after the canonically third of three tuppers created by User:2^67-1, Pergele (originator of this idea is Frostburn in a meme post).

Genchain

The genchain for this scale is as follows:

5♭♭ A♭♭ F♭♭ 2♭♭ 7♭♭ C♭♭ H♭♭ 4♭♭ 9♭♭ E♭♭
dd5 d10 d15 d2 d7 d12 d17 d4 d9 d14
1♭ 6♭ B♭ G♭ 3♭ 8♭ D♭ 0♭ 5♭ A♭ F♭ 2♭ 7♭ C♭ H♭ 4♭ 9♭ E♭
d1 d6 d11 d16 d3 d8 d13 d0 d5 m10 m15 m2 m7 m12 m17 m4 m9 m14
1 6 B G 3 8 D 0 5 A F 2 7 C H 4 9 E
m1 m6 m11 m16 m3 m8 P13 P0 P5 M10 M15 M2 M7 M12 M17 M4 M9 M14
1# 6# B# G# 3# 8# D# 0# 5# A# F# 2# 7# C# H# 4# 9# E#
M1 M6 M11 M16 M3 M8 A13 A0 A5 A10 A15 A2 A7 A12 A17 A4 A9 A14
1## 6## B## G## 3## 8## D##
A1 A6 A11 A16 A3 A8 AA13

Scale tree

Template:Scale tree

Category:18-note scales