Xenharmonic Wiki:MOS page style guide: Difference between revisions

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This is a proposed, work-in-progress style guide for mos pages. It's highly recommended to use any templates that are mentioned, as they provide a standardized means of presenting information that is common with virtually all mosses.
{{mbox|text=This page is maintained by [[Xenharmonic Wiki:WikiProject Mospage|Project Mospage]].}}


As this guide can't account for every possible use case, use your best judgment to remove any sections described that aren't needed or to add any sections that aren't mentioned.
{{Infobox MOS|Tuning=5L 2s|debug=1}}
This is a '''style guide for mos pages'''.


==Lead section==
The minimum templates for a mos page, for a page that can be considered a stub or otherwise has very little information, is the following:
The lead section should, at the minimum, consist of the [[Template:Infobox MOS|mos infobox]] and the [[Template:MOS intro|mos intro]]. Any other introductory info (eg, whether the mos can be thought of as a warped mos) may be added here.


==Mos pages with plenty of content==
* [[Template:Infobox MOS|Infobox MOS]]; required, as it categorizes the page
The following order of sections is recommended for important mos pages.
* [[Template:MOS intro|MOS intro]]; recommended
* [[Template:MOS intervals|MOS intervals]]; optional, but recommended for small mosses (no more than around 10 notes)
* [[Template:MOS modes|MOS modes]]; optional, but recommended for small mosses (no more than around 10 notes)
* [[Template:MOS tuning spectrum|MOS tuning spectrum]]; recommended


#'''Name(s)''' - What is the mos called? TAMNAMS is the predominant naming scheme, but some names may come from earlier naming systems and other theorists' recommendations.
For guidance on how to expand or improve existing pages, this page's sections provide on what to include, and how to name each section. Sections should be added ''as needed''. Sections in ''italics'' do not denote actual sections, but rather items to add in addition to existing sections or outside of any section. This page uses 5L 2s as its running example.
#'''Notation''' - How are intervals and note names referred to? TAMNAMS and diamond-mos is typically used, but can also include notation described by other theorists and musicians. The two subsections are recommended:
##'''Intervals (and scale degrees)'''
##'''Note names'''
#'''Theory''' - Is there any theory behind this mos? This can include RTT-related content and non-RTT content. In terms of RTT-related content, this can include:
##'''Low harmonic entropy scales'''
##'''Temperament interpretations'''
#'''Tuning ranges''' - What edos/ETs are reached using certain step ratios? What diatonic intervals are reached this way? Subsections for narrower ranges can be added, combined, subdivided, or omitted as needed, but the following is a good starting place:
##'''Simple tunings''' - Step ratios 2:1, 3:1, and 3:2
##'''Soft''' '''tunings''' - Step ratios 4:3 and 5:3, in comparison to 3:2
##'''Hard''' '''tunings''' - Step ratios 4:1 and 5:2, in comparison to 3:1
#'''Modes''' - What modes does the mos have? What names do they have, if any? What intervals do these modes have?
#'''Scales''' - What scales are there associated with this mos? Sections may include the following:
##'''Subset and superset MOS scales''' - This describes the mos's parent (subset) and child (superset) mosses; may also include conditional subset mosses.
##'''MODMOS scales''' ('''and muddles)'''
##'''Scala files'''
#'''Scale tree''' - A larger version of the equal tunings section of the mos infobox, showing a wider range of step ratios (and compatible equal temperaments) for the mos.
#'''Music''' - Are there any compositions or tracks that use this mos?
#'''See also''' - Are there any other pages related to this mos?
#'''External links''' - Are there outside resources related to this mos?
#'''References''' -  For cited works.


== Mos pages with sparse content ==
'''Disclaimer''': as this guide cannot account for every possible use case, editors are advised to use their best judgment on what to add or not. Additionally, nothing about this guide is set in stone; this guide can (and should!) be updated to fit current developments regarding mos pages.
Especially for mos pages that are under-explored, it may not be necessary to add all the sections previously described. For such mosses, the following sections are recommended:


# '''Name''' - Add if needed.
== ''Lead section'' (precedes the first section) ==
# '''Modes'''
<pre>
# '''Tuning spectrum''' - Add if there are temperament interpretations worth listing, or if the main content ''is'' the tuning spectrum.
{{Infobox MOS}}
# '''See also''' - Add if needed.
{{MOS intro}}
#'''External links''' - Add if needed.
</pre>
#'''References''' - Add if needed.
The lead section should, at the minimum, consist of [[Template:Infobox MOS]] and the [[Template:MOS intro]]. To ensure proper order of templates when viewed on mobile devices, the infobox should be placed before the intro. Hatnotes should be placed before the infobox. The mos intro is as follows:


== Templates to use ==
{{MOS intro|Scale Signature=5L 2s}}
Other important info can include the following:


* For the lead section:
* Whether the mos can be thought of a warping of another, more familiar mos or edo. Examples:
** [[Template:Infobox MOS|Infobox MOS]] - contains basic info regarding the mos itself.
** 4L&nbsp;3s can be seen as a warped diatonic scale (5L&nbsp;2s), where one large step is replaced with a small step.
** [[Template:MOS intro|MOS intro]] - goes at the beginning of the lead section.
** 5L&nbsp;1s can be seen as the equal-tempered whole-tone scale (6edo) but with one step that is larger than the others.
* For the main sections:
* Usage, discovery, and noteworthy temperaments the mos corresponds to.
** [[Template:MOS gamut|MOS gamut]] - for the notation section; produces note names for a compatible edo.
* Under what conditions is the mos proper. This is only recommended for mosses with notable near-mos forms, as this information is included in the intro already.
** [[Template:MOS degrees|MOS degrees]] - for the tuning section; lists the specific scale degrees of a mos, given a step ratio (or multiple step ratios). Documentation is work-in-progress.
Sections that would be otherwise too short, such as temperament-related information, can be added in the lead section instead.
** [[Template:MOS modes|MOS modes]] - for the modes section; lists a mos's modes for its step patterns and any names those modes may have.
 
** [[Template:Scale tree|Scale tree]] - for the scale tree section; displays an expanded spectrum of step ratios and any related temperaments.
What the mos is referred to may also be included here. Names that see common use should be added here; proposed names are assumed to be idiosyncratic until proven otherwise.
 
Subsections for this follow the format for TAMNAMS, in which the following are described in their own subsections:
 
== Scale properties ==
=== Intervals ===
The use of TAMNAMS is advised for describing the names of its intervals and scale degrees. The mos intervals template gives ranges for each of the intervals present in the mos.
<pre>
{{MOS intervals}}
</pre>{{MOS intervals|Scale Signature=5L 2s}}
 
=== Modes ===
Listings of the scale's modes, or rotations of its step patterns, are added here. This can include mode names in use by the general community. Names that have not received use by the broader community use should be treated as idiosyncratic, and if applicable, the person who had proposed the names should be stated. Example: ''person-name'' has proposed/advocated for the following names...
 
Listing mode names ''specific'' to a tuning or temperament is not advised. Linking to such mode names is allowed.<pre>
{{MOS modes}}
</pre>{{MOS modes|Scale Signature=5L 2s}}
 
Scale degree qualities (major, minor, etc) can be show using the template shown.<pre>
{{MOS mode degrees}}
</pre>{{MOS mode degrees|Scale Signature=5L 2s}}
 
== Theory ==
Subsections include:
 
* Low harmonic entropy scales
* Temperament interpretations
Other subsections include:
 
* Any theory described by musicians/theorists
* Tetrachordal analysis or similar
 
== Tuning ranges ==
Discussions about specific tuning ranges, and what JI ratios are approximated, can be given. Hatnotes to appropriate temperament pages are also advised.
 
Tuning ranges include:
 
* '''Simple tunings''' - Step ratios 2:1, 3:1, and 3:2
* '''Soft-of-basic''' '''tunings''' - Step ratios softer than 2:1
* '''Hard-of-basic''' '''tunings''' - Step ratios harder than 2:1
 
Sections for smaller ranges can be used instead. Such ranges include:
* '''Ultrasoft tunings''' - Step ratio tunings between 1:1 to 4:3
* '''Parasoft tunings''' - Step ratio tunings between 4:3 to 3:2
* '''Hyposoft tunings''' - Step ratio tunings between 3:2 to 2:1, which can be split even further if needed:
** '''Quasisoft tunings''' - Step ratio tunings between 3:2 to 5:3
** '''Minisoft tunings''' - Step ratio tunings between 5:3 to 2:1
* '''Hypohard tunings''' - Step ratio tunings between 2:1 to 3:1, which can be split even further if needed:
** '''Minihard tunings''' - Step ratio tunings between 2:1 to 5:2
** '''Quasihard tunings''' - Step ratio tunings between 5:2 to 3:1
* '''Parahard tunings''' - Step ratio tunings between 3:1 to 4:1
* '''Ultrahard tunings''' - Step ratio tunings between 4:1 to 1:0
 
The mos tunings template shows cent values for varying step ratios.
<pre>
{{MOS tunings|Step Ratio=2/1; 3/1; 3/2}}
</pre>
{{MOS tunings|Step Ratio=2/1; 3/1; 3/2|Scale Signature=5L 2s}}
 
== Scales ==
Links to scala file pages can be added here, as well as links to pages regarding step variations (typically modmos scales) of the mos.
 
== Scale tree ==
The tuning spectrum template (or scale tree) can be provided using the corresponding template. A handmade table can also be used if the template is found too limiting, such as by substituting the template.
<pre>
{{MOS tuning spectrum}}
</pre>{{MOS tuning spectrum|Scale Signature=5L 2s}}
 
== Music ==
Links to music can be added here.
 
== See also ==
Links to other pages can be added here.
 
== External links ==
Links to outside-wiki resources regarding the mos and/or its tunings can be added here.
 
== References==
If any works are cited, add them here.
 
== ''Categories'' (succeeds the last section) ==
The mos infobox automatically categorizes the mos by note count and under the category of abstract mos patterns. Any other categories can be added here.
 
== ''Other sections not discussed here'' ==
* Gallery - recommended location is before Music
* Notation - recommended location is after Intervals. Notation schemes shouldn't be added unless it has notable use by multiple composers or its use is ubiquitous, as with 5L 2s. If there are multiple notation schemes, this section may be made into a subpage, though this should be a last resort.
* Approaches
* Genchain
* Trivia

Latest revision as of 22:49, 6 March 2025

This page is maintained by Project Mospage.
↖ 4L 1s ↑ 5L 1s 6L 1s ↗
← 4L 2s 5L 2s 6L 2s →
↙ 4L 3s ↓ 5L 3s 6L 3s ↘
┌╥╥╥┬╥╥┬┐
│║║║│║║││
│││││││││
└┴┴┴┴┴┴┴┘
Scale structure
Step pattern LLLsLLs
sLLsLLL
Equave 2/1 (1200.0 ¢)
Period 2/1 (1200.0 ¢)
Generator size
Bright 4\7 to 3\5 (685.7 ¢ to 720.0 ¢)
Dark 2\5 to 3\7 (480.0 ¢ to 514.3 ¢)
TAMNAMS information
Name diatonic
Prefix dia-
Abbrev. dia
Related MOS scales
Parent 2L 3s
Sister 2L 5s
Daughters 7L 5s, 5L 7s
Neutralized 3L 4s
2-Flought 12L 2s, 5L 9s
Equal tunings
Equalized (L:s = 1:1) 4\7 (685.7 ¢)
Supersoft (L:s = 4:3) 15\26 (692.3 ¢)
Soft (L:s = 3:2) 11\19 (694.7 ¢)
Semisoft (L:s = 5:3) 18\31 (696.8 ¢)
Basic (L:s = 2:1) 7\12 (700.0 ¢)
Semihard (L:s = 5:2) 17\29 (703.4 ¢)
Hard (L:s = 3:1) 10\17 (705.9 ¢)
Superhard (L:s = 4:1) 13\22 (709.1 ¢)
Collapsed (L:s = 1:0) 3\5 (720.0 ¢)

This is a style guide for mos pages.

The minimum templates for a mos page, for a page that can be considered a stub or otherwise has very little information, is the following:

For guidance on how to expand or improve existing pages, this page's sections provide on what to include, and how to name each section. Sections should be added as needed. Sections in italics do not denote actual sections, but rather items to add in addition to existing sections or outside of any section. This page uses 5L 2s as its running example.

Disclaimer: as this guide cannot account for every possible use case, editors are advised to use their best judgment on what to add or not. Additionally, nothing about this guide is set in stone; this guide can (and should!) be updated to fit current developments regarding mos pages.

Lead section (precedes the first section)

{{Infobox MOS}}
{{MOS intro}}

The lead section should, at the minimum, consist of Template:Infobox MOS and the Template:MOS intro. To ensure proper order of templates when viewed on mobile devices, the infobox should be placed before the intro. Hatnotes should be placed before the infobox. The mos intro is as follows:

5L 2s, named diatonic in TAMNAMS, is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 5 large steps and 2 small steps, repeating every octave. Generators that produce this scale range from 685.7 ¢ to 720 ¢, or from 480 ¢ to 514.3 ¢. Other important info can include the following:

  • Whether the mos can be thought of a warping of another, more familiar mos or edo. Examples:
    • 4L 3s can be seen as a warped diatonic scale (5L 2s), where one large step is replaced with a small step.
    • 5L 1s can be seen as the equal-tempered whole-tone scale (6edo) but with one step that is larger than the others.
  • Usage, discovery, and noteworthy temperaments the mos corresponds to.
  • Under what conditions is the mos proper. This is only recommended for mosses with notable near-mos forms, as this information is included in the intro already.

Sections that would be otherwise too short, such as temperament-related information, can be added in the lead section instead.

What the mos is referred to may also be included here. Names that see common use should be added here; proposed names are assumed to be idiosyncratic until proven otherwise.

Subsections for this follow the format for TAMNAMS, in which the following are described in their own subsections:

Scale properties

Intervals

The use of TAMNAMS is advised for describing the names of its intervals and scale degrees. The mos intervals template gives ranges for each of the intervals present in the mos.

{{MOS intervals}}
Intervals of 5L 2s
Intervals Steps
subtended
Range in cents
Generic Specific Abbrev.
0-diastep Perfect 0-diastep P0dias 0 0.0 ¢
1-diastep Minor 1-diastep m1dias s 0.0 ¢ to 171.4 ¢
Major 1-diastep M1dias L 171.4 ¢ to 240.0 ¢
2-diastep Minor 2-diastep m2dias L + s 240.0 ¢ to 342.9 ¢
Major 2-diastep M2dias 2L 342.9 ¢ to 480.0 ¢
3-diastep Perfect 3-diastep P3dias 2L + s 480.0 ¢ to 514.3 ¢
Augmented 3-diastep A3dias 3L 514.3 ¢ to 720.0 ¢
4-diastep Diminished 4-diastep d4dias 2L + 2s 480.0 ¢ to 685.7 ¢
Perfect 4-diastep P4dias 3L + s 685.7 ¢ to 720.0 ¢
5-diastep Minor 5-diastep m5dias 3L + 2s 720.0 ¢ to 857.1 ¢
Major 5-diastep M5dias 4L + s 857.1 ¢ to 960.0 ¢
6-diastep Minor 6-diastep m6dias 4L + 2s 960.0 ¢ to 1028.6 ¢
Major 6-diastep M6dias 5L + s 1028.6 ¢ to 1200.0 ¢
7-diastep Perfect 7-diastep P7dias 5L + 2s 1200.0 ¢

Modes

Listings of the scale's modes, or rotations of its step patterns, are added here. This can include mode names in use by the general community. Names that have not received use by the broader community use should be treated as idiosyncratic, and if applicable, the person who had proposed the names should be stated. Example: person-name has proposed/advocated for the following names...

Listing mode names specific to a tuning or temperament is not advised. Linking to such mode names is allowed.

{{MOS modes}}
Modes of 5L 2s
UDP Cyclic
order
Step
pattern
Mode names
6|0 1 LLLsLLs Lydian
5|1 5 LLsLLLs Ionian (major)
4|2 2 LLsLLsL Mixolydian
3|3 6 LsLLLsL Dorian
2|4 3 LsLLsLL Aeolian (minor)
1|5 7 sLLLsLL Phrygian
0|6 4 sLLsLLL Locrian

Scale degree qualities (major, minor, etc) can be show using the template shown.

{{MOS mode degrees}}
Scale degrees of the modes of 5L 2s
UDP Cyclic
order
Step
pattern
Scale degree (diadegree)
0 1 2 3 4 5 6 7
6|0 1 LLLsLLs Perf. Maj. Maj. Aug. Perf. Maj. Maj. Perf.
5|1 5 LLsLLLs Perf. Maj. Maj. Perf. Perf. Maj. Maj. Perf.
4|2 2 LLsLLsL Perf. Maj. Maj. Perf. Perf. Maj. Min. Perf.
3|3 6 LsLLLsL Perf. Maj. Min. Perf. Perf. Maj. Min. Perf.
2|4 3 LsLLsLL Perf. Maj. Min. Perf. Perf. Min. Min. Perf.
1|5 7 sLLLsLL Perf. Min. Min. Perf. Perf. Min. Min. Perf.
0|6 4 sLLsLLL Perf. Min. Min. Perf. Dim. Min. Min. Perf.

Theory

Subsections include:

  • Low harmonic entropy scales
  • Temperament interpretations

Other subsections include:

  • Any theory described by musicians/theorists
  • Tetrachordal analysis or similar

Tuning ranges

Discussions about specific tuning ranges, and what JI ratios are approximated, can be given. Hatnotes to appropriate temperament pages are also advised.

Tuning ranges include:

  • Simple tunings - Step ratios 2:1, 3:1, and 3:2
  • Soft-of-basic tunings - Step ratios softer than 2:1
  • Hard-of-basic tunings - Step ratios harder than 2:1

Sections for smaller ranges can be used instead. Such ranges include:

  • Ultrasoft tunings - Step ratio tunings between 1:1 to 4:3
  • Parasoft tunings - Step ratio tunings between 4:3 to 3:2
  • Hyposoft tunings - Step ratio tunings between 3:2 to 2:1, which can be split even further if needed:
    • Quasisoft tunings - Step ratio tunings between 3:2 to 5:3
    • Minisoft tunings - Step ratio tunings between 5:3 to 2:1
  • Hypohard tunings - Step ratio tunings between 2:1 to 3:1, which can be split even further if needed:
    • Minihard tunings - Step ratio tunings between 2:1 to 5:2
    • Quasihard tunings - Step ratio tunings between 5:2 to 3:1
  • Parahard tunings - Step ratio tunings between 3:1 to 4:1
  • Ultrahard tunings - Step ratio tunings between 4:1 to 1:0

The mos tunings template shows cent values for varying step ratios.

{{MOS tunings|Step Ratio=2/1; 3/1; 3/2}}
Simple Tunings of 5L 2s
Scale degree Abbrev. Basic (2:1)
12edo
Hard (3:1)
17edo
Soft (3:2)
19edo
Steps ¢ Steps ¢ Steps ¢
Perfect 0-diadegree P0diad 0\12 0.0 0\17 0.0 0\19 0.0
Minor 1-diadegree m1diad 1\12 100.0 1\17 70.6 2\19 126.3
Major 1-diadegree M1diad 2\12 200.0 3\17 211.8 3\19 189.5
Minor 2-diadegree m2diad 3\12 300.0 4\17 282.4 5\19 315.8
Major 2-diadegree M2diad 4\12 400.0 6\17 423.5 6\19 378.9
Perfect 3-diadegree P3diad 5\12 500.0 7\17 494.1 8\19 505.3
Augmented 3-diadegree A3diad 6\12 600.0 9\17 635.3 9\19 568.4
Diminished 4-diadegree d4diad 6\12 600.0 8\17 564.7 10\19 631.6
Perfect 4-diadegree P4diad 7\12 700.0 10\17 705.9 11\19 694.7
Minor 5-diadegree m5diad 8\12 800.0 11\17 776.5 13\19 821.1
Major 5-diadegree M5diad 9\12 900.0 13\17 917.6 14\19 884.2
Minor 6-diadegree m6diad 10\12 1000.0 14\17 988.2 16\19 1010.5
Major 6-diadegree M6diad 11\12 1100.0 16\17 1129.4 17\19 1073.7
Perfect 7-diadegree P7diad 12\12 1200.0 17\17 1200.0 19\19 1200.0

Scales

Links to scala file pages can be added here, as well as links to pages regarding step variations (typically modmos scales) of the mos.

Scale tree

The tuning spectrum template (or scale tree) can be provided using the corresponding template. A handmade table can also be used if the template is found too limiting, such as by substituting the template.

{{MOS tuning spectrum}}
Scale tree and tuning spectrum of 5L 2s
Generator(edo) Cents Step ratio Comments
Bright Dark L:s Hardness
4\7 685.714 514.286 1:1 1.000 Equalized 5L 2s
23\40 690.000 510.000 6:5 1.200
19\33 690.909 509.091 5:4 1.250
34\59 691.525 508.475 9:7 1.286
15\26 692.308 507.692 4:3 1.333 Supersoft 5L 2s
41\71 692.958 507.042 11:8 1.375
26\45 693.333 506.667 7:5 1.400
37\64 693.750 506.250 10:7 1.429
11\19 694.737 505.263 3:2 1.500 Soft 5L 2s
40\69 695.652 504.348 11:7 1.571
29\50 696.000 504.000 8:5 1.600
47\81 696.296 503.704 13:8 1.625
18\31 696.774 503.226 5:3 1.667 Semisoft 5L 2s
43\74 697.297 502.703 12:7 1.714
25\43 697.674 502.326 7:4 1.750
32\55 698.182 501.818 9:5 1.800
7\12 700.000 500.000 2:1 2.000 Basic 5L 2s
Scales with tunings softer than this are proper
31\53 701.887 498.113 9:4 2.250
24\41 702.439 497.561 7:3 2.333
41\70 702.857 497.143 12:5 2.400
17\29 703.448 496.552 5:2 2.500 Semihard 5L 2s
44\75 704.000 496.000 13:5 2.600
27\46 704.348 495.652 8:3 2.667
37\63 704.762 495.238 11:4 2.750
10\17 705.882 494.118 3:1 3.000 Hard 5L 2s
33\56 707.143 492.857 10:3 3.333
23\39 707.692 492.308 7:2 3.500
36\61 708.197 491.803 11:3 3.667
13\22 709.091 490.909 4:1 4.000 Superhard 5L 2s
29\49 710.204 489.796 9:2 4.500
16\27 711.111 488.889 5:1 5.000
19\32 712.500 487.500 6:1 6.000
3\5 720.000 480.000 1:0 → ∞ Collapsed 5L 2s

Music

Links to music can be added here.

See also

Links to other pages can be added here.

External links

Links to outside-wiki resources regarding the mos and/or its tunings can be added here.

References

If any works are cited, add them here.

Categories (succeeds the last section)

The mos infobox automatically categorizes the mos by note count and under the category of abstract mos patterns. Any other categories can be added here.

Other sections not discussed here

  • Gallery - recommended location is before Music
  • Notation - recommended location is after Intervals. Notation schemes shouldn't be added unless it has notable use by multiple composers or its use is ubiquitous, as with 5L 2s. If there are multiple notation schemes, this section may be made into a subpage, though this should be a last resort.
  • Approaches
  • Genchain
  • Trivia