9/5: Difference between revisions

Interval information
Ratio	9/5
Factorization	32 × 5-1
Monzo	[0 2 -1⟩
Size in cents	1017.596¢
Name	minor seventh
FJS name	[math]\displaystyle{ \text{m7}_{5} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	5.49185
Weil norm (log2 max(n, d))	6.33985
Wilson norm (sopfr(nd))	11
	https://en.xen.wiki/w/File:Jid_9_5_pluck_adu_dr220.mp3; [sound info]
	Open this interval in xen-calc

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Revision as of 10:09, 22 October 2018

9/5 is a treated as a consonance in 5-limit just intonation, forming a part of such chords such as the 1-6/5-3/2-9/5 minor seventh chord, and the supermajor tetrad, 1-9/7-3/2-9/5 in the 7-limit.

Coincidentally, the ratio between a common "alternative" tuning frequency (A432) and the most common AC electrical frequency (60hz) is exactly 36/5, two octaves above 9/5. This is notably a more consonant interval than the 11/6 formed by the more common tuning frequency of A440, which may lead to a noticeable improvement in consonance when electrically powered instruments or amplifiers are interfered with by AC power.

@@ Line 1: / Line 1: @@
-'''9/5'''
+{{Infobox Interval
-|0 2 -1&gt;
+| Icon =
+| Ratio = 9/5
+| Monzo = 0 2 -1
+| Cents = 1017.5963
+| Name = minor seventh
+| Sound = jid_9_5_pluck_adu_dr220.mp3
+| Color name =
+}}
-.5963 cents
+'''9/5''' is a treated as a consonance in [[5-limit]] just intonation, forming a part of such chords such as the 1-6/5-3/2-9/5 minor seventh chord, and the supermajor tetrad, 1-9/7-3/2-9/5 in the 7-limit.
-[[File:jid_9_5_pluck_adu_dr220.mp3]] [[:File:jid_9_5_pluck_adu_dr220.mp3|sound sample]]
+Coincidentally, the ratio between a common "alternative" tuning frequency (A432) and the most common AC electrical frequency (60hz) is exactly 36/5, two octaves above 9/5. This is notably a more consonant interval than the 11/6 formed by the more common tuning frequency of A440, which may lead to a noticeable improvement in consonance when electrically powered instruments or amplifiers are interfered with by AC power.
-'''9/5''' is a treated as a consonance in [[5-limit|5-limit]] just intonation, forming a part of such chords such as the 1-6/5-3/2-9/5 minor seventh chord, and the supermajor tetrad, 1-9/7-3/2-9/5 in the 7-limit.
+[[Category:Interval]]
-Coincidentally, the ratio between a common "alternative" tuning frequency (A432) and the most common AC electrical frequency (60hz) is exactly 36/5, two octaves above 9/5. This is notably a more consonant interval than the 11/6 formed by the more common tuning frequency of A440, which may lead to a noticeable improvement in consonance when electrically powered instruments or amplifiers are interfered with by AC power.
 [[Category:ji]]
 [[Category:ratio]]
 [[Category:todo:expand]]
+[[Category:todo:review interval name]]

9/5: Difference between revisions

Revision as of 10:09, 22 October 2018

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