A9 chord on 6-String Guitar – Open D

in Open D (D-A-D-F#-A-D) tuning · Also known as Vestapol, Sebastopol, DADF#AD

Root

Type

Tuning

Dominant 9

Notes:A · C# · E · G · B

mediumfret 2

Piano Left hand Right hand

Fingerings (16)

A9 shapes as text

Frets	Fingers	Notes	Difficulty
x 0 2 5 4 5	– – 1 3 2 4	x A E B C# G	medium
2 2 2 3 4 5	1 1 1 2 3 4	E B E A C# G	medium · barre on fret 2
x 0 5 5 4 5	– – 2 3 1 4	x A G B C# G	medium
9 0 5 7 7 5	4 – 1 2 3 1	B A G C# E G	hard · barre on fret 5
7 7 7 7 10 9	1 1 1 1 3 2	A E A C# G B	medium · barre on fret 7
11 0 9 10 10 9	4 – 1 2 3 1	C# A B E G B	medium · barre on fret 9
x 0 5 5 4 2	– – 3 4 2 1	x A G B C# E	medium
2 2 5 3 4 2	1 1 4 2 3 1	E B G A C# E	medium · barre on fret 2
x 0 5 5 4 x	– – 2 3 1 –	x A G B C# x	easy
x 0 5 7 7 9	– – 1 2 3 4	x A G C# E B	hard
7 7 9 7 10 7	1 1 2 1 3 1	A E B C# G A	medium · barre on fret 7
x 0 9 10 10 11	– – 1 2 3 4	x A B E G C#	medium
2 4 2 5 0 5	1 2 1 3 – 4	E C# E B A G	medium · barre on fret 2
2 4 2 3 2 5	1 3 1 2 1 4	E C# E A B G	medium · barre on fret 2
7 4 5 5 4 x	4 1 2 3 1 –	A C# G B C# x	medium · barre on fret 4
x 0 9 7 7 5	– – 4 2 3 1	x A B C# E G	hard

Max fret: 12

Fingerings shown: 16

The A9 chord (Dominant 9) is built from the notes A, C#, E, G, B. Below are playable fingerings for 6-String Guitar – Open D generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.

How the A9 chord is built

Formula: 1 · 3 · 5 · ♭7 · 9

Degree	Semitones	Note
1	0	A
3	4	C#
5	7	E
♭7	10	G
9	14	B

More A chords

A Am A7 A°A+Amaj7 Am7 A7♯5 A7♭5 A6 Am6 Am7♭5 A°7 Asus2 Asus4 Aadd9 Amaj9 Am9 A5

Other roots

C9 C#9 D9 D#9 E9 F9 F#9 G9 G#9 A#9 B9

See A9 in another tuning

Standard E E-A-D-G-B-E Half Step Down (Eb) D#-G#-C#-F#-A#-D#Drop D D-A-D-G-B-E Open D D-A-D-F#-A-D Open G D-G-D-G-B-D DADGAD (D Modal) D-A-D-G-A-D

What notes make up the A9 chord?

A9 is a Dominant 9 chord built from the notes A, C#, E, G, B.

How do I read the diagram?

Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.