View source for 6:7:8:9

{{Infobox Chord|ColorName=zo add-4 or z,4}}
'''6:7:8:9''' is a subminor add-4 chord in the [[7-limit]] and the [[9-odd-limit]]. In other words, it has a shape similar to a minor add-4 chord, but with a [[subminor]] third instead of a minor third.

It can be constructed by stacking the intervals [[7/6]], [[8/7]] and [[9/8]] in that order, making it a stack of three consecutive [[superparticular]] intervals. 

It is a subset of [[5afdo]]. It is very approximated very well by [[36edo]], making it one of the most important consonant [[tetrad]]s in 36edo harmony.

== See also ==
* [[4:6:7:9]]
* [[5:6:7:9]]
* [[6:7:9]]
* [[6:7:9:10]]
* [[6:8:9]]

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