Reference : seventh chords jazz symbols
To represent the different types of seventh chords, we can add minor, major or diminished seventh intervals to the chord symbols of the triads.
Minor seventh interval
A 7 adds a minor seventh interval to a triad (Bb in this examples):
Dominant seventh
Major triad with minor seventh
Major triad with minor seventh
Dominant seventh sus4
Sus4 triad with minor seventh
Sus4 triad with minor seventh
Dominant seventh with augmented fifth
Augmented triad with minor seventh
Augmented triad with minor seventh
Minor seventh chord
Minor triad with minor seventh
Minor triad with minor seventh
Half diminished seventh
Diminished triad with minor seventh
Can also be written: Cø
Diminished triad with minor seventh
Can also be written: Cø
Major seventh interval
Maj7 or △ adds a major seventh interval to a triad:
Major seventh chord
Can also be written C△ or C△7
Can also be written C△ or C△7
Minor triad with major seventh
Major seventh chord with augmented fifth
Augmented triad with major seventh
Augmented triad with major seventh
Diminished seventh interval
dim7 or o7 adds a diminished seventh interval to a diminished triad:
Diminished triad with diminished seventh
Can also be written Co7
Can also be written Co7
Inversions
As with triads, to indicate an inversion, we add a slash and specify the note to be played in the bass:
See also:
