A9 chord on 6-String Guitar – Drop B

in Drop B (B-F#-B-E-G#-C#) tuning

Root

Type

Tuning

Dominant 9

Notes:A · C# · E · G · B

easyfret 3

Piano Left hand Right hand

Fingerings (16)

A9 shapes as text

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

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 B 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 B B-F#-B-E-G#-C#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.