9/4: Difference between revisions

@@ Line 1: / Line 1: @@
-'''9/4'''
+{{Infobox Interval
-|-2 2&gt;
+| Name = Pythagorean major ninth
+| Color name = w9, wa 9th
-.9100 cents
+| Sound = jid_9_4_pluck_adu_dr220.mp3
+}}
-[[File:jid_9_4_pluck_adu_dr220.mp3]] [[:File:jid_9_4_pluck_adu_dr220.mp3|sound sample]]
+'''9/4''', the '''Pythagorean major ninth''', is an interval which is equal to a stack of two perfect fifths (([[3/2]])<sup>2</sup>); the ratio between the 4th and 9th harmonics; one octave above [[9/8]]. See also [[ed9/4]].
-Pythagorean ninth; two perfect fifths ([[3/2|3/2]] * 3/2); the ratio between the 4th and 9th harmonics; one octave above [[9/8|9/8]].