12:14:18:21 - Revision history

FloraC at 16:47, 20 January 2026

2026-01-20T16:47:10Z

← Older revision		Revision as of 16:47, 20 January 2026
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	{{Infobox Chord\|ColorName=zo-7 or z7}}		{{Infobox Chord\|ColorName=zo-7 or z7}}
	'''12:14:18:21''', a ''subminor seventh chord'' or ''septimal minor seventh chord'', is an [[anomalous saturated suspension]] in the [[9-odd-limit]].		'''12:14:18:21''', the ''subminor seventh chord'' or ''septimal minor seventh chord'', is an [[anomalous saturated suspension]] in the [[9-odd-limit]].

	<!-- Note: This was at one point labeled a ~~“Swiss tetrad”~~, seemingly due to a mistaken identification of the ~~“Swiss~~ sixth ~~chord”~~. [[User:Bcmills]] doesn't see how it would actually relate to the Swiss sixth, which can be represented in 5-limit JI as [[256:320:375:450]] and seems closer to a dominant seventh than a subminor one. -->		<!-- Note: This was at one point labeled a "Swiss tetrad", seemingly due to a mistaken identification of the "Swiss sixth chord". [[User:Bcmills]] doesn't see how it would actually relate to the Swiss sixth, which can be represented in 5-limit JI as [[256:320:375:450]] and seems closer to a dominant seventh than a subminor one. -->
	{\| class="wikitable center-all" style="column-width:10em"		{\| class="wikitable center-all" style="column-width:10em"
	! Ratio		! Ratio
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	\| colspan="4" \| [[File:Swiss tetrad.mp3]]		\| colspan="4" \| [[File:Swiss tetrad.mp3]]
	\|}		\|}
			{{Todo\|research\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}

	~~{{Todo\|research\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}~~
	== See also ==		== See also ==
	* [[14:18:21:24]]		* [[14:18:21:24]]

Overthink: + see also section

2025-12-28T04:55:30Z

+ see also section

← Older revision		Revision as of 04:55, 28 December 2025
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	{{Todo\|research\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}		{{Todo\|research\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}
			== See also ==
			* [[14:18:21:24]]

	[[Category:Listen]]		[[Category:Listen]]
	[[Category:Minor seventh chords\|##]]		[[Category:Minor seventh chords\|##]]

TallKite: add color name

2024-09-24T01:08:07Z

add color name

← Older revision		Revision as of 01:08, 24 September 2024
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	{{Infobox Chord\|~~Name~~=~~subminor seventh,septimal minor seventh~~}}		{{Infobox Chord\|ColorName=zo-7 or z7}}
	'''12:14:18:21''', a ''subminor seventh chord'' or ''septimal minor seventh chord'', is an [[anomalous saturated suspension]] in the [[9-odd-limit]].		'''12:14:18:21''', a ''subminor seventh chord'' or ''septimal minor seventh chord'', is an [[anomalous saturated suspension]] in the [[9-odd-limit]].

BudjarnLambeth: Change todo to todo:research

2024-09-22T08:41:28Z

Change todo to todo:research

← Older revision		Revision as of 08:41, 22 September 2024
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	\|}		\|}

	{{Todo\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}		{{Todo\|research\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}

	[[Category:Listen]]		[[Category:Listen]]
	[[Category:Minor seventh chords\|##]]		[[Category:Minor seventh chords\|##]]

Bcmills at 03:46, 23 August 2024

2024-08-23T03:46:41Z

← Older revision		Revision as of 03:46, 23 August 2024
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	[[Category:Listen]]		[[Category:Listen]]
	[[Category:Minor seventh chords]]		[[Category:Minor seventh chords\|##]]

Bcmills: remove redundant Tetrads category (already implied by Minor seventh chords)

2024-08-15T03:45:42Z

remove redundant Tetrads category (already implied by Minor seventh chords)

← Older revision		Revision as of 03:45, 15 August 2024
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	{{Todo\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}		{{Todo\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}

	~~[[Category:Tetrads]]~~
	[[Category:Listen]]		[[Category:Listen]]
	[[Category:Minor seventh chords]]		[[Category:Minor seventh chords]]

Bcmills: Add TODO for connection to 7-limit Blues

2024-08-15T03:43:30Z

Add TODO for connection to 7-limit Blues

← Older revision		Revision as of 03:43, 15 August 2024
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	\| colspan="4" \| [[File:Swiss tetrad.mp3]]		\| colspan="4" \| [[File:Swiss tetrad.mp3]]
	\|}		\|}

			{{Todo\|inline=1\|text=This chord may be closely connected to 7-limit interpretations of the Blues scale.}}

	[[Category:Tetrads]]		[[Category:Tetrads]]
	[[Category:Listen]]		[[Category:Listen]]
	[[Category:Minor seventh chords]]		[[Category:Minor seventh chords]]

Bcmills: Remove “Swiss” appellations; this chord seems to be a septimal minor seventh, full stop. (For an actual Swiss sixth, see 256:320:375:450.)

2024-08-15T03:21:26Z

Remove “Swiss” appellations; this chord seems to be a septimal minor seventh, full stop. (For an actual Swiss sixth, see 256:320:375:450.)

← Older revision		Revision as of 03:21, 15 August 2024
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	{{Infobox Chord\|12:14:18:21~~\|Name=Swiss tetrad}}~~		{{Infobox Chord\|Name=subminor seventh,septimal minor seventh}}
	~~The~~ '''~~swiss tetrad~~''' ~~is a just 7-prime-limit~~, ~~9-odd-limit chord which~~ is an [[anomalous saturated suspension]]~~. In close position, it is~~ [[~~unison\|1]]~~-~~[[7/6]]~~-~~[[3/2]]-[[7/4~~]] ~~(12:14:18:21), with steps 7/6-9/7-7/6-8/7. Tempered versions of it have been called "subminor seventh chords" or "swiss sixth chords", so "swiss tetrad" splits the difference~~.		'''12:14:18:21''', a ''subminor seventh chord'' or ''septimal minor seventh chord'', is an [[anomalous saturated suspension]] in the [[9-odd-limit]].

			<!-- Note: This was at one point labeled a “Swiss tetrad”, seemingly due to a mistaken identification of the “Swiss sixth chord”. [[User:Bcmills]] doesn't see how it would actually relate to the Swiss sixth, which can be represented in 5-limit JI as [[256:320:375:450]] and seems closer to a dominant seventh than a subminor one. -->
	{\| class="wikitable center-all" style="column-width:10em"		{\| class="wikitable center-all" style="column-width:10em"
	! Ratio		! Ratio
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	[[Category:Tetrads]]		[[Category:Tetrads]]
	[[Category:Listen]]		[[Category:Listen]]
			[[Category:Minor seventh chords]]

Bcmills: remove redundant category: Dyadic chords

2024-08-13T13:57:47Z

remove redundant category: Dyadic chords

← Older revision		Revision as of 13:57, 13 August 2024
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	\|}		\|}

	~~[[Category:Dyadic chords]]~~
	[[Category:Tetrads]]		[[Category:Tetrads]]
	[[Category:Listen]]		[[Category:Listen]]

Bcmills: add Category:Tetrads

2024-08-12T18:29:41Z

add Category:Tetrads

← Older revision		Revision as of 18:29, 12 August 2024
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	[[Category:Dyadic chords]]		[[Category:Dyadic chords]]
			[[Category:Tetrads]]
	[[Category:Listen]]		[[Category:Listen]]