21/11: Difference between revisions

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'''21/11'''

{{Infobox Interval

~~|0 1 0 1~~ -~~1>~~

| Name = large undecimal diminished octave, undecimal major seventh, pentacircle major seventh

| Color name = 1uz8, luzo 8ve

| Sound = jid_21_11_pluck_adu_dr220.mp3

}}

'''21/11''', commonly known as the '''large undecimal diminished octave''', is an [[11-limit]] interval, and the octave complement of [[22/21]].

~~1119~~.~~463 cents~~

In many notation systems (e.g. [[FJS]], [[HEJI]]), it is an imperfect octave, as it is the octave minus a stack consisting of an [[33/32|undecimal quartertone (33/32)]] and a [[64/63|septimal comma (64/63)]], neither of which changes the [[scale|scale degree]] or [[interval quality|quality]]. However, it is only sharp of the [[243/128|Pythagorean major seventh (243/128)]] by a [[896/891|pentacircle comma (896/891)]]. For this reason it could be called the '''pentacircle major seventh'''.

[[~~File~~:~~jid_21_11_pluck_adu_dr220.mp3~~]] [[:~~File~~:~~jid_21_11_pluck_adu_dr220.mp3|sound sample~~]] [[Category:~~todo~~:~~expand~~]]

Of note is that the Huygens-Fokker Foundation dubs this interval the '''undecimal major seventh''', which also makes sense, resulting in this interval being perhaps best classified as a "sevtave" – a type of cross between a seventh and an octave.

== See also ==

* [[22/21]] – its [[octave complement]]

[[Category:Octave]]

[[Category:Diminished octave]]

[[Category:Seventh]]

[[Category:Major seventh]]

[[Category:Over-11 intervals]]

@@ Line 1: / Line 1: @@
-'''21/11'''
+{{Infobox Interval
-|0 1 0 1 -1&gt;
+| Name = large undecimal diminished octave, undecimal major seventh, pentacircle major seventh
+| Color name = 1uz8, luzo 8ve
+| Sound = jid_21_11_pluck_adu_dr220.mp3
+}}
+'''21/11''', commonly known as the '''large undecimal diminished octave''', is an [[11-limit]] interval, and the octave complement of [[22/21]].
-.463 cents
+In many notation systems (e.g. [[FJS]], [[HEJI]]), it is an imperfect octave, as it is the octave minus a stack consisting of an [[33/32|undecimal quartertone (33/32)]] and a [[64/63|septimal comma (64/63)]], neither of which changes the [[scale|scale degree]] or [[interval quality|quality]]. However, it is only sharp of the [[243/128|Pythagorean major seventh (243/128)]] by a [[896/891|pentacircle comma (896/891)]]. For this reason it could be called the '''pentacircle major seventh'''.
-[[File:jid_21_11_pluck_adu_dr220.mp3]] [[:File:jid_21_11_pluck_adu_dr220.mp3|sound sample]]      [[Category:todo:expand]]
+Of note is that the Huygens-Fokker Foundation dubs this interval the '''undecimal major seventh''', which also makes sense, resulting in this interval being perhaps best classified as a "sevtave" – a type of cross between a seventh and an octave.
+== See also ==
+* [[22/21]] – its [[octave complement]]
+[[Category:Octave]]
+[[Category:Diminished octave]]
+[[Category:Seventh]]
+[[Category:Major seventh]]
+[[Category:Over-11 intervals]]