User:2^67-1/7L 11s (√12-equivalent)

From Xenharmonic Wiki
Jump to navigation Jump to search

Assume hemipyth[10] nominal names and intervals unless otherwise stated.

The 7L 11s (√12-equivalent) scale is a 4L6s eighteenth-repeating 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.

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 hemipyth 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 greater 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) by # and f "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 two pentachords in its first dekatave. The others are named after a certain 'core' or first-wave member of the Colian Nexus.

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-Pochhammer The canonically second 'core' of the Colian Nexus, 2-analogue-related functions.
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).