View source for Nine limit tetrads

The [[9-odd-limit|nine-limit just intonation]] tetrads are subchords of the full nine-limit [[Pentad|pentads]], omitting one element.

=3-5-7-9=
These are the [[Otonality and utonality|otonal]] subminor [[tetrad]], 1-7/6-3/2-5/3, and the [[Otonality and utonality|utonal]] supermajor tetrad, 1-9/7-3/2-9/5, with [[Step|steps]] 7/6-9/7-10/9-6/5 and 9/7-7/6-6/5-10/9.

=1-5-7-9=
These are the otonal, 1-9/8-5/4-7/4 and the utonal, 1-7/5-14/9-7/4, with steps 9/8-10/9-7/5-8/7 and 7/5-10/9-9/8-8/7.

=1-3-7-9=
These are the otonal, 1-9/8-3/2-7/4, and the utonal, 1-4/3-3/2-12/7, with steps 9/8-4/3-7/6-8/7 and 4/3-9/8-8/7-7/6.

=1-3-5-9=
These are the otonal, 1-9/8-5/4-3/2, sometimes called add2, and the utonal, 1-6/5-4/3-3/2, with steps 9/8-10/9-6/5-4/3 and 6/5-10/9-9/8-4/3 respectively.

[[Category:9-odd-limit]]
[[Category:Tetrads]]

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