Dominant Seventh Sharp Five Chords (7#5) | Guitar Shapes and Voicing Charts

What's a dominant 7#5 chord?

A dominant seventh sharp five chord is also known as "seventh augmented fifth chord" or "augmented seventh chord". As its name implies, it consists of a dominant seventh chord with an augmented fifth instead of a perfect fifth. It can also be viewed as an augmented triad with a minor seventh. Chord tones are : root (1), major third (3), augmented fifth (#5) and minor seventh (b7). Dominant 7#5 chords produce a dissonant and unstable sound. They can be used to add tension in your playing.

G7#5 G B D# F
Formula 1 3 #5 b7

 

Symbols and notations

Seventh augmented fifth chords can be written +7, aug7, 7+5, 7#5.

7#5 guitar chords | Drop 2 voicings with diagrams

How to Play dominant 7#5 Chords on Guitar

Here are the four drop 2 dominant 7#5 voicings and their related guitar chord shapes. 

What are drop 2 chords ?

Drop 2 chords are surely the most used voicings by jazz guitarist (The term "voicings" refers to the order of notes in a chord). They are built by dropping the second highest note of a four-notes close chord to the bass. 7#5 close chord formula is 1-3-#5-7 that gives the following drop 2 chord formula #5-1-3-7.

What is an inverted chord ?

It means that the notes of a chord are inverted, there can be a third, a fifth or a seventh in the bass. 

Root chord  R #5 b7 3
1st inversion (third in the bass) 3 b7 R #5
2nd inversion (augmented fifth in the bass) #5 R 3 b7
3rd inversion (minor seventh in the bass) b7 3 #5 R

 

 

Dominant 7 5 drop 2 guitar chord shapes

 

7#5 guitar chords | Drop 3 voicings with diagrams

The two diagrams below show how to play drop 3 dominant 7#5 chords on guitar.

Root chord  R b7 3 #5
1st inversion (third in the bass) 3 R #5 b7
2nd inversion (augmented fifth in the bass) #5 3 b7 R
3rd inversion (minor seventh in the bass) b7 #5 R 3
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Last edited: 07/05/2019