Tetrad: Difference between revisions

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-A '''tetrad''' is a [[chord]] of four different notes.
+{{Distinguish| Tetrachord }}
+{{Wikipedia| Tetrad (music) }}
+A '''tetrad''' is a [[chord]] of four [[pitch class]]es. Some examples are major seventh, minor seventh, dominant seventh, diminished seventh, and augmented seventh chords. Some microtonal ones include harmonic seventh and neutral seventh chords.
+There are lots of seventh chords, but tetrads can also be add chords, like major add 2, or major add 6.
+== See also ==
+* Chords by size:
+** [[Monad]]
+** [[Dyad]]
+** [[Triad]]
+** [[Pentad]]
+** [[Hexad]]
+== External links ==
+* [http://tonalsoft.com/enc/t/tetrad.aspx Tonalsoft Encyclopedia | ''Tetrad'']
 [[Category:Tetrad| ]]
+[[Category:Tetrads| ]]
 [[Category:Terms]]
-[[Category:Greek]]
-[[Category:todo:expand]]
+{{todo|inline=1|expand}}