A9 chord on 6-String Guitar – Drop C

in Drop C (C-G-C-F-A-D) tuning

Root

Type

Tuning

Dominant 9

Notes:A · C# · E · G · B

medium

Piano Left hand Right hand

Fingerings (16)

A9 shapes as text

Frets	Fingers	Notes	Difficulty
x 2 1 2 2 x	– 2 1 3 4 –	x A C# G B x	medium
x 2 x 6 4 5	– 1 – 4 2 3	x A x B C# G	hard
4 4 4 4 4 5	1 1 1 1 1 2	E B E A C# G	easy · barre on fret 4
9 6 x 6 0 5	4 2 – 3 – 1	A C# x B A G	hard
9 6 7 6 7 x	4 1 2 1 3 –	A C# G B E x	medium · barre on fret 6
9 x 7 8 7 9	3 – 1 2 1 4	A x G C# E B	hard · barre on fret 7
x x 9 8 10 9	– – 2 1 4 3	x x A C# G B	medium
9 12 11 x 0 11	1 4 2 – – 3	A G B x A C#	hard
11 12 11 11 12 11	1 2 1 1 3 1	B G B E A C#	easy · barre on fret 11
1 2 1 2 2 x	1 2 1 3 4 –	C# A C# G B x	medium · barre on fret 1
x 6 x 4 2 5	– 4 – 2 1 3	x C# x A B G	hard
x 4 4 4 4 5	– 1 1 1 1 2	x B E A C# G	easy · barre on fret 4
x 6 7 6 0 5	– 2 4 3 – 1	x C# G B A G	medium
9 6 7 6 0 7	4 1 2 1 – 3	A C# G B A A	medium · barre on fret 6
9 x 7 8 0 9	3 – 1 2 – 4	A x G C# A B	hard
9 12 11 8 0 x	2 4 3 1 – –	A G B C# A x	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 – Drop C 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 Drop C C-G-C-F-A-D 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.