3L 5s: Difference between revisions
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'''3L 5s''' or '''sensoid''' refers to the structure of octave-equivalent [[MOS]] scales with generators ranging from 1\3 (one degrees of [[3edo]] = 400¢) to 3\8 (three degrees of [[8edo]] = 450¢). In the case of 8edo, L and s are the same size; in the case of 3edo, s becomes so small it disappears (and all that remains are the three equal L's). The pattern is also named ''antioneirotonic'' because it is the [[oneirotonic]] (5L 3s) MOS pattern with large and small steps switched. | '''3L 5s''' or '''sensoid''' (named after the regular temperament [[sensi]]) refers to the structure of octave-equivalent [[MOS]] scales with generators ranging from 1\3 (one degrees of [[3edo]] = 400¢) to 3\8 (three degrees of [[8edo]] = 450¢). In the case of 8edo, L and s are the same size; in the case of 3edo, s becomes so small it disappears (and all that remains are the three equal L's). The pattern is also named ''antioneirotonic'' because it is the [[oneirotonic]] (5L 3s) MOS pattern with large and small steps switched. | ||
There are two significant harmonic entropy minima with this MOS pattern. [[Sensipent_family|Sensi]], in which the generator is 9/7, two of them make 5/3, and seven of them make 6/1, is the proper one. [[Meantone_family#Squares|Squares]], in which the generator is also 9/7, but two of them make 18/11 and five of them make 8/3, is improper. | There are two significant harmonic entropy minima with this MOS pattern. [[Sensipent_family|Sensi]], in which the generator is 9/7, two of them make 5/3, and seven of them make 6/1, is the proper one. [[Meantone_family#Squares|Squares]], in which the generator is also 9/7, but two of them make 18/11 and five of them make 8/3, is improper. | ||
== Notation == | |||
The notation used in this article is JKLMNOPQJ = sLssLsLs (Anti-Ultharian), #/@ = up/down by chroma, N = C4 = 261.6255653 Hz. | |||
== Tuning ranges == | |||
=== Parasoft === | |||
Parasoft is the narrow region between 7\19 (442.1¢) and 10\27 (444.4¢). The root-mos5th-mos8th chords usually spell 5:7:9 and 7:10:13 chords (shown in the Anti-Dylathian mode QJKLMNOPQ = ssLssLsL): | |||
* Q M P = ssLs sLs L = 5:7:9 | |||
* J N Q = sLss LsL s = the odd one out | |||
* K O J = LssL sLs s = 7:10:13 | |||
* L P K = ssLs Lss L = 5:7:9 | |||
* M Q L = sLsL ssL s = 7:10:13 | |||
* N J M = LsLs sLs s = 7:10:13 | |||
* O K N = sLss Lss L = 5:7:9 | |||
* P L O = LssL ssL s = 7:10:13 | |||
<!-- Tunings in this region have a regular temperament interpretation called [[Sensi]].--> | |||
== Modes == | |||
Sensoid modes can be named by prefixing ''anti-'' to their counterpart modes in the MOS sister [[oneirotonic]]. | |||
# Anti-Sarnathian (sar-NA(H)TH-iən): LsLssLss | |||
# Anti-Hlanithian (lə-NITH-iən): LssLsLss | |||
# Anti-Kadathian (kə-DA(H)TH-iən): LssLssLs | |||
# Anti-Mnarian (mə-NA(I)R-iən): sLsLssLs | |||
# Anti-Ultharian (ul-THA(I)R-iən): sLssLsLs | |||
# Anti-Celephaïsian (kel-ə-FAY-zhən): sLssLssL | |||
# Anti-Illarnekian (ill-ar-NEK-iən): ssLsLssL | |||
# Anti-Dylathian (də-LA(H)TH-iən): ssLssLsL | |||
The modes on the white keys JKLMNOPQJ are: | |||
* J Anti-Ultharian | |||
* K Anti-Hlanithian | |||
* L Anti-Illarnekian | |||
* M Anti-Mnarian | |||
* N Anti-Sarnathian | |||
* O Anti-Celephaïsian | |||
* P Anti-Kadathian | |||
* Q Anti-Dylathian | |||
{| class="wikitable" | |||
|- | |||
|+ Table of modes (based on J, from darkest to brightest) | |||
|- | |||
! Mode | |||
! 1 | |||
! 2 | |||
! 3 | |||
! 4 | |||
! 5 | |||
! 6 | |||
! 7 | |||
! 8 | |||
! (9) | |||
|- | |||
| Anti-Sarnathian | |||
| J | |||
| K& | |||
| L | |||
| M& | |||
| N& | |||
| O | |||
| P& | |||
| Q | |||
| (J) | |||
|- | |||
| Anti-Hlanithian | |||
| J | |||
| K& | |||
| L | |||
| M | |||
| N& | |||
| O | |||
| P& | |||
| Q | |||
| (J) | |||
|- | |||
| Anti-Kadathian | |||
| J | |||
| K& | |||
| L | |||
| M | |||
| N& | |||
| O | |||
| P | |||
| Q | |||
| (J) | |||
|- | |||
| Anti-Mnarian | |||
| J | |||
| K | |||
| L | |||
| M | |||
| N& | |||
| O | |||
| P | |||
| Q | |||
| (J) | |||
|- | |||
| Anti-Ultharian | |||
| J | |||
| K | |||
| L | |||
| M | |||
| N | |||
| O | |||
| P | |||
| Q | |||
| (J) | |||
|- | |||
| Anti-Celephaïsian | |||
| J | |||
| K | |||
| L | |||
| M | |||
| N | |||
| O | |||
| P | |||
| Q@ | |||
| (J) | |||
|- | |||
| Anti-Illarnekian | |||
| J | |||
| K | |||
| L@ | |||
| M | |||
| N | |||
| O | |||
| P | |||
| Q@ | |||
| (J) | |||
|- | |||
| Anti-Dylathian | |||
| J | |||
| K | |||
| L@ | |||
| M | |||
| N | |||
| O@ | |||
| P | |||
| Q@ | |||
| (J) | |||
|} | |||
== Scale tree == | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- |