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2
7th
chord qualities
Following are the five most commonly encountered types
of 7th chords:
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major seventh |
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minor seventh |
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major-minor seventh (also called dominant
seventh when it occurs on the fifth scale degree) |
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1/2-dim 7 or half-diminished seventh |
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fully-diminished seventh |
You can think of each seventh chord as a triad with an added third
at the top, or as a triad with an added 7th from the root. The following
table demonstrates both methods of constructing the five 7th-chord
qualities you need to learn:
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7th chord qualities
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major seventh chord
=
major triad with major 3rd on top or major triad
with major 7th
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minor
seventh chord =
minor triad with minor 3rd on top or minor triad
with minor 7th
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| major-minor
seventh chord =
major triad with minor 3rd on top or major triad with
minor 7th
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1/2-diminished
seventh chord =
diminished triad with major 3rd on top or diminished
triad with minor 7th
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fully-diminished
seventh chord =
diminished triad with minor 3rd on top or diminished
triad with diminished 7th
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