Talk:2.3.7 subgroup - Revision history

VectorGraphics at 22:40, 15 October 2025

2025-10-15T22:40:31Z

← Older revision		Revision as of 22:40, 15 October 2025
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	-- [[User:VectorGraphics\|VectorGraphics]] ([[User talk:VectorGraphics\|talk]]) 21:28, 11 June 2025 (UTC)		-- [[User:VectorGraphics\|VectorGraphics]] ([[User talk:VectorGraphics\|talk]]) 21:28, 11 June 2025 (UTC)


			== Ok, let's have another go at this ==

			{\| class="wikitable"
			\|+
			!Type
			!Color name
			!Quality
			!Intervals
			!Notes
			\|-
			\|Pentatonic
			\|zo (2.3.7, 7-over) pentatonic
			\|Subminor
			\|1/1 7/6 4/3 3/2 7/4 2/1
			\|
			\|-
			\|Pentatonic
			\|zo in
			\|Subminor (in)
			\|1/1 9/8 7/6 3/2 14/9 2/1
			\|[[wikipedia:In_scale\|in]] scale, a minor scale with no 4th or 7th
			\|-
			\|Heptatonic
			\|zo heptatonic
			\|Subminor
			\|1/1 9/8 7/6 4/3 3/2 14/9 7/4 2/1
			\|
			\|-
			\|Heptatonic
			\|za (2.3.7) harmonic minor
			\|Subminor (harmonic)
			\|1/1 9/8 7/6 4/3 3/2 14/9 27/14 2/1
			\|zo scale with a ru 7th
			\|-
			\|Pentatonic
			\|ru (2.3.7, 7-under) pentatonic
			\|Supermajor
			\|1/1 9/8 9/7 3/2 12/7 2/1
			\|
			\|-
			\|Heptatonic
			\|ru heptatonic
			\|Supermajor
			\|1/1 9/8 9/7 4/3 3/2 12/7 27/14 2/1
			\|
			\|-
			\|Enneatonic
			\| - (zo)
			\|Subminor (diasem)
			\|1/1 9/8 7/6 21/16 4/3 3/2 14/9 7/4 16/9 2/1
			\|[[diasem]]/Tas[9] ([[Chiral\|left-handed]])
			\|}

			Proposal for replacement for the scales section. -- [[User:VectorGraphics\|VectorGraphics]] ([[User talk:VectorGraphics\|talk]]) 22:40, 15 October 2025 (UTC)

VectorGraphics at 21:28, 11 June 2025

2025-06-11T21:28:27Z

← Older revision		Revision as of 21:28, 11 June 2025
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	:: I asked Claude 3.7 and was convinced that group extension can be used for weak 'extension'. (It's not that I understood cohomology or anything like that.) To return to the topic, I agree to put aside retract, which is similar to both saturation and projection. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 15:00, 24 April 2025 (UTC)		:: I asked Claude 3.7 and was convinced that group extension can be used for weak 'extension'. (It's not that I understood cohomology or anything like that.) To return to the topic, I agree to put aside retract, which is similar to both saturation and projection. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 15:00, 24 April 2025 (UTC)

			== We need to moderate color name usage ==

			I firmly believe that color names should never be the exclusive names used to refer to something. TallKite does not own the wiki, and descriptions should be provided in familiar musical terms (or terms derived from such) where possible (even if color names are provided as alternatives).

			P.S. I do not think "subminor" on a page about the 2.3.7 subgroup is ambiguous in the slightest.

			-- [[User:VectorGraphics\|VectorGraphics]] ([[User talk:VectorGraphics\|talk]]) 21:28, 11 June 2025 (UTC)

Dummy index: re

2025-04-24T15:00:00Z

← Older revision		Revision as of 15:00, 24 April 2025
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	:: That's a lot of abstraction for what is essentially very simple: extension = make bigger, restriction = make smaller. – [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 20:33, 23 April 2025 (UTC)		:: That's a lot of abstraction for what is essentially very simple: extension = make bigger, restriction = make smaller. – [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 20:33, 23 April 2025 (UTC)

			:: I asked Claude 3.7 and was convinced that group extension can be used for weak 'extension'. (It's not that I understood cohomology or anything like that.) To return to the topic, I agree to put aside retract, which is similar to both saturation and projection. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 15:00, 24 April 2025 (UTC)

Sintel at 20:33, 23 April 2025

2025-04-23T20:33:25Z

← Older revision		Revision as of 20:33, 23 April 2025
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	: It seems necessary to consider the relationship with {{w\|Group extension}}. (Can group extension be used in relation to 2.3.5 and 2.9.5?) ... Oh dear, there's also {{w\|Retract (group theory)}}.		: It seems necessary to consider the relationship with {{w\|Group extension}}. (Can group extension be used in relation to 2.3.5 and 2.9.5?) ... Oh dear, there's also {{w\|Retract (group theory)}}.
	: Retraction seems like it could be directly used in the definition of saturation. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 12:01, 23 April 2025 (UTC)		: Retraction seems like it could be directly used in the definition of saturation. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 12:01, 23 April 2025 (UTC)

			:: That's a lot of abstraction for what is essentially very simple: extension = make bigger, restriction = make smaller. – [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 20:33, 23 April 2025 (UTC)

Dummy index: /* retraction/expansion terminology */

2025-04-23T12:01:20Z

retraction/expansion terminology

← Older revision		Revision as of 12:01, 23 April 2025
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	– [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 23:18, 22 April 2025 (UTC)		– [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 23:18, 22 April 2025 (UTC)

			: It seems necessary to consider the relationship with {{w\|Group extension}}. (Can group extension be used in relation to 2.3.5 and 2.9.5?) ... Oh dear, there's also {{w\|Retract (group theory)}}.
			: Retraction seems like it could be directly used in the definition of saturation. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 12:01, 23 April 2025 (UTC)

Sintel: retraction/expansion terminology

2025-04-22T23:18:37Z

retraction/expansion terminology

New page

== retraction/expansion terminology ==

I know this is well-defined on temperaments, but for subgroups, I would prefer the more well-known terms restriction/extension.

– [[User:Sintel|Sintel🎏]] ([[User_talk:Sintel|talk]]) 23:18, 22 April 2025 (UTC)

← Older revision		Revision as of 20:33, 23 April 2025
Line 7:		Line 7:
	: It seems necessary to consider the relationship with {{w\|Group extension}}. (Can group extension be used in relation to 2.3.5 and 2.9.5?) ... Oh dear, there's also {{w\|Retract (group theory)}}.		: It seems necessary to consider the relationship with {{w\|Group extension}}. (Can group extension be used in relation to 2.3.5 and 2.9.5?) ... Oh dear, there's also {{w\|Retract (group theory)}}.
	: Retraction seems like it could be directly used in the definition of saturation. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 12:01, 23 April 2025 (UTC)		: Retraction seems like it could be directly used in the definition of saturation. --[[User:Dummy index\|Dummy index]] ([[User talk:Dummy index\|talk]]) 12:01, 23 April 2025 (UTC)

			:: That's a lot of abstraction for what is essentially very simple: extension = make bigger, restriction = make smaller. – [[User:Sintel\|Sintel🎏]] ([[User_talk:Sintel\|talk]]) 20:33, 23 April 2025 (UTC)