A9 chord

A9 chord for guitar in different forms, including open and barre chords.


A9 chord diagram X 12 11 12 12 12

The diagram shows the A 9th in closed position and with a semi-bar shape. Avoid playing on the 6th string. A9 is a five-note chord consisting of A, C#, E, G, B.

Alternative shapes


  • A9 chord diagram X 12 11 12 12 X

A9 barre

  • A9 chord diagram 575657


  • A9 chord diagram 5454XX


  • A9 chord diagram X02423

Relevant chords


  • A9 chord diagram X02000


  • A9/B chord diagram X22223

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Theory and information

Try in a chord progression

A9 - D6 - E13

Chord names

A9 is a dominant chord. A9/C#, A9/E, A9/G and A9/B are inversions of the chord.

Notes in the chord

The notes that the A9 chord consists of are A, C#, E, G, B.
To get A11 add D.
To get Amaj9 replace G with G#.


The X02000 fingering omits the 3rd and can also be seen as A7sus2. It's is generally hard to find suitable fingerings for A9 in open position. Instead for the X02000 fingering with E note doublings, alternatives are X02003 fingering with G note doublings and X02203 fingering with A note doublings. The 5454XX fingering can be seen as a simplified version of 54545X and without the 5th.


1st inversion: A9/C# (means that C# is the bass note).
2nd inversion: A9/E (means that E is the bass note).
3rd inversion: A9/G (means that G is the bass note).
4th inversion: A9/B (means that B is the bass note).

Assorted slash chords

Versions with alternate bass notes in short notation:

A9/C#: X42203
A9/E: 002423
A9/G: 302420

Alternative chord names

A9 is identical with Em6/A.


A9 (no3) is an A dominant 9th with no third (C#).
A9 (no5) is an A dominant 9th with no fifth (E).

Written in tab format (main version in open position)

- 0 -
- 0 -
- 0 -
- 2 -
- 0 -
- - -

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