A 7(#5) Guitar Chord | Play, Hear and Practice Interactively
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The A augmented seventh chord is usually written A7#5 and uses the notes A, C#, E# and G. The chord tones all belong to the A whole-tone scale, a good starting scale when you improvise over this chord.
The E# here is a theoretical spelling: it keeps one letter name for each chord tone, although it sounds like an easier note. The major third sits exactly halfway between the root and the raised fifth, each step being four semitones. The page lists 4 voicings: one rings an open string and 2 are barre shapes.
Chords at this level are gathered in intermediate guitar chords. Use the player at the top of the page to hear how the chord sounds strummed and when its notes are played one by one.
A dominant 7th with sharp 5th guitar chord is also written as A7(#5), A7#5, A7+5 or Aaug7.
A 7(#5) chord Notes:
Chord Formula:
Formula: 1 3 #5 b7
A 7(#5) Guitar Chord Diagrams
Position 1 Open
Finger Positions
- Mute the low E string
- Let the A string play without pressing any fret
- Let the G string play without pressing any fret
- Place your index finger (1) on the fret 1 of the high E string
- Place your middle finger (2) on the fret 2 of the B string
- Place your ring finger (3) on the fret 3 of the D string
Position 2 Barre Movable
Finger Positions
- Mute the A string
- Place your index finger (1) on the fret 5 of the low E, D and high E strings at the same time
- Place your middle finger (2) on the fret 6 of the G string
- Place your ring finger (3) on the fret 6 of the B string
Position 3 Barre Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 10 of the A, G and B strings at the same time
- Place your middle finger (2) on the fret 11 of the D string
Position 4 Movable
Finger Positions
- Mute the A string
- Mute the high E string
- Place your index finger (1) on the fret 5 of the low E string
- Place your middle finger (2) on the fret 5 of the D string
- Place your ring finger (3) on the fret 6 of the G string
- Place your pinky finger (4) on the fret 6 of the B string
Find more shapes in our all guitar chords online library. If you
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes are in the A7#5 chord?
A7#5 is spelled A, C#, E# and G. These are the root, a major third, a raised fifth and a minor seventh. E# sounds like F.
Why is A7#5 written with E# rather than F?
The fifth of A falls on the letter E, so raising it gives E#. F is the same pitch, but the chord is built on the letters A, C, E, G.
How does A7#5 differ from A dominant seventh?
The fifth is raised a semitone. A7 has E, while A7#5 has E#. The major third C# and minor seventh G stay the same.
Which scale covers A7#5?
The A whole-tone scale, A, B, C#, D#, E#, G, holds all four chord notes. That gives you a scale where every note agrees with the chord.
How many A7#5 voicings can be played on guitar?
There are 4 voicings, 1 of them using an open string and 2 using a barre. They run from fret 1 to fret 11.
