Skip to main content
Get your Wikispaces Classroom now:
the easiest way to manage your class.
xenharmonic (microtonal wiki)
Pages and Files
XA Facebook Group
XA IRC Chat
Lists and Galleries
Backing up this wiki
JI glyph for 9/7
|0 2 0 -1>
, 9/7 is a supermajor third of approximately 435.1¢, characteristic of
and beyond. On its own, it has a very strident quality, but in the context of a chord, it can sound perfectly consonant. The 9-limit hexad 4:5:6:7:8:9 includes a septimal supermajor third between the 7th and the 9th. The interval has an interesting neutral quality to it similar to the way 9/8 behaves as ratios of nine all share this quality.
A just chord can be built with this wide third in place of the more traditional
. This supermajor triad would be 14:18:21. This triad can be very effective in music, but in this context, the modern ear accustomed to 12edo thirds of 400¢ is likely to hear 9/7 as a mistuned major third instead of a new class of interval in its own right. Because 9/7 is a ratio of 9, it shares sonority qualities with 9/8 much more than 5/4. Chords such as the
hexad above and subsets of it give more opportunity for 9/7 to be heard as consonant.
Gallery of Just Intervals
Septimal major third
help on how to format text
Contributions to http://xenharmonic.wikispaces.com/ are licensed under a
Creative Commons Attribution Share-Alike Non-Commercial 3.0 License
Portions not contributed by visitors are Copyright 2017 Tangient LLC
TES: The largest network of teachers in the world
Turn off "Getting Started"