# Augmented seventh chord

(Redirected from Augmented minor seventh chord)

augmented seventh chord
Component intervals from root
minor seventh
augmented fifth
major third
root
Tuning
80:100:125:144
Forte no. / Complement
4-24 / 8-24

The augmented seventh chord  , or seventh augmented fifth chord,[1] or seventh sharp five chord is a dominant seventh chord consisting of an augmented triad with a minor seventh.[2] Thus, it consists of a root, major third, augmented fifth, and the minor seventh.[3] Thus in the key of C major it would be C, E, G, and B as in the figure. It may be notated with the C+7, Caug7, [3] or C75, and can be represented by the integer notation {0, 4, 8, 10}.

The root is the only optional note in an augmented seventh chord, the fifth being required because it is raised.[4] This alteration is useful in the major mode because the raised 5th creates a leading tone to the 3rd of the tonic triad.[2] See also dominant.

In rock parlance, the term Augmented seventh chord is sometimes confusingly and erroneously used to refer to the so-called "Hendrix chord", a 79 chord which contains the interval of an augmented ninth but not an augmented fifth.[5]

One chord scale option for a C augmented dominant seventh chord (C E G B  ) is the C whole tone scale:[6] C D E F G A/B

The augmented minor seventh chord may be considered an altered dominant seventh and may use the whole-tone scale, as may the dominant seventh flat five chord.[7] See chord scale system.

Augmented seventh chord resolution in C major.

The augmented seventh chord normally resolves to the chord a perfect fifth below,[8] thus Gaug7 resolves to a C major chord, for example.

## Augmented seventh chord table

Chord Root Major third Augmented fifth Minor seventh
Caug7 C E G B
Caug7 C E (F) G (A) B
Daug7 D F A C (B)
Daug7 D F A C
Daug7 D F (G) A (B) C
Eaug7 E G B D
Eaug7 E G B (C) D
Faug7 F A C E
Faug7 F A C (D) E
Gaug7 G B D F (E)
Gaug7 G B D F
Gaug7 G B (C) D (E) F
Aaug7 A C E G
Aaug7 A C E (F) G
Aaug7 A C (D) E (F) G
Baug7 B D G A
Baug7 B D F (G) A