A7#5 chord on piano

A Augmented Seventh. Notes: A, C#, F and G.

A7#5 piano chord, root positionAC4FGC5C#
Root position. Tap any key to hear it.

How to play A7#5

  1. Find A just below middle C. That is the root.
  2. Add C#, F and G above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.

Notes

Aroot
C#3 · major third
F#5 · augmented fifth
Gb7 · minor seventh

A7#5 inversions

An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.

A7#5 Root positionAC4FGC5C#

Root position

A · C# · F · G
A7#5 1st inversionC4FGAC5C#

1st inversion

C# · F · G · A
A7#5 2nd inversionC4FGAC5C#

2nd inversion

F · G · A · C#
A7#5 3rd inversionC4GAC5FC#

3rd inversion

G · A · C# · F

Notes and theory

Aroot
C#3 · major third
F#5 · augmented fifth
Gb7 · minor seventh

The augmented seventh (7#5) raises the fifth of a dominant seventh, which pushes hard toward the next chord. The formula is 1 3 #5 b7, and you will also see it written as Aaug7 and A+7. Strictly by music theory the notes are spelled A, C#, E# and G; E# is the same key as F.

More A chords

All A piano chords

augmented seventh chords in every key

Questions

What notes are in the A7#5 chord?

A7#5 (A augmented seventh) is made of four notes: A (root), C# (major third), F (augmented fifth) and G (minor seventh).

How do you play A7#5 on piano?

Play A, C#, F and G together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.

What are the inversions of A7#5?

Root position: A C# F G. 1st inversion: C# F G A. 2nd inversion: F G A C#. 3rd inversion: G A C# F.

What does a augmented seventh chord sound like?

The augmented seventh (7#5) raises the fifth of a dominant seventh, which pushes hard toward the next chord.