54/49: Difference between revisions

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{{Infobox Interval

~~| Ratio = 54/49~~

| Name = Zalzal's mujannab, superpythagorean chroma

~~| Monzo = 1 3 0 -2~~

~~| Cents = 168.21319~~

| Name = Zalzal's mujannab

| Color name = rr1, ruru unison

| Sound = jid_54_49_pluck_adu_dr220.mp3

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'''Zalzal's mujannab''', the interval of '''54/49''' introduced by [[Wikipedia:Mansour Zalzal|Mansour Zalzal]], is between [[11/10]] and [[10/9]] in size, being [[540/539]] sharp of 11/10 and [[245/243]] flat of 10/9. It is the interval between [[7/6]] and [[9/7]]. Tempering out 540/539 equates it with 11/10 and leads to [[swetismic chords]]. Occurring often in JI scales, it is one of the ways 11-limit harmony gets introduced into [[7-limit]] scales.

It is also called the '''superpythagorean chromatic semitone'''{{idio}} or '''superpythagorean chroma''' since, in [[superpyth]] temperament, the minor third is 7/6, the major third is 9/7, and the difference between the two is 54/49.

Moving to [[Exotemperament|exotempering]], this can be tempered out, leading to the '''mujannabic''' temperament equating 7/6 and 9/7. However, it is usually better to temper out [[25/24]] instead for a similar structural effect.

== See also ==

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* [[Gallery of just intervals]]

~~[[Category:7-limit]]~~

[[Category:Second]]

[[Category:Neutral second]]

[[Category:Equable heptatonic]]

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 {{Infobox Interval
-| Ratio = 54/49
+| Name = Zalzal's mujannab, superpythagorean chroma
-| Monzo = 1 3 0 -2
-| Cents = 168.21319
-| Name = Zalzal's mujannab
 | Color name = rr1, ruru unison
 | Sound = jid_54_49_pluck_adu_dr220.mp3
@@ Line 9: / Line 6: @@
 '''Zalzal's mujannab''', the interval of '''54/49''' introduced by [[Wikipedia:Mansour Zalzal|Mansour Zalzal]], is between [[11/10]] and [[10/9]] in size, being [[540/539]] sharp of 11/10 and [[245/243]] flat of 10/9. It is the interval between [[7/6]] and [[9/7]]. Tempering out 540/539 equates it with 11/10 and leads to [[swetismic chords]]. Occurring often in JI scales, it is one of the ways 11-limit harmony gets introduced into [[7-limit]] scales.
+It is also called the '''superpythagorean chromatic semitone'''{{idio}} or '''superpythagorean chroma''' since, in [[superpyth]] temperament, the minor third is 7/6, the major third is 9/7, and the difference between the two is 54/49.
+Moving to [[Exotemperament|exotempering]], this can be tempered out, leading to the '''mujannabic''' temperament equating 7/6 and 9/7. However, it is usually better to temper out [[25/24]] instead for a similar structural effect.
 == See also ==
@@ Line 14: / Line 15: @@
 * [[Gallery of just intervals]]
-[[Category:7-limit]]
 [[Category:Second]]
 [[Category:Neutral second]]
+[[Category:Equable heptatonic]]