A#9 chord on 6-String Guitar – Open A 2
in Open A 2 (E-A-E-A-C#-E) tuning · Also known as Slide A
A#9
Dominant 9
Notes:A# · D · F · G# · C
Piano Left hand Right hand
Fingerings (16)
A#9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| x 1 1 3 1 4 | – 1 1 2 1 3 | x A# F C D G# | medium · barre on fret 1 | |
| 6 3 4 5 x x | 4 1 2 3 – – | A# C G# D x x | medium | |
| 6 x 4 5 4 8 | 3 – 1 2 1 4 | A# x G# D F C | hard · barre on fret 4 | |
| 6 5 8 5 7 x | 2 1 4 1 3 – | A# D C D G# x | medium · barre on fret 5 | |
| 6 x 8 x 7 10 | 1 – 3 – 2 4 | A# x C x G# D | hard | |
| 8 8 8 11 9 10 | 1 1 1 4 2 3 | C F C G# A# D | medium · barre on fret 8 | |
| x 1 4 3 1 1 | – 1 3 2 1 1 | x A# G# C D F | medium · barre on fret 1 | |
| 6 5 4 3 x x | 4 3 2 1 – – | A# D G# C x x | medium | |
| 6 x 4 5 x 8 | 3 – 1 2 – 4 | A# x G# D x C | hard | |
| x x 6 5 7 8 | – – 2 1 3 4 | x x A# D G# C | medium | |
| 6 x 10 x 7 8 | 1 – 4 – 2 3 | A# x D x G# C | hard | |
| 8 8 10 11 9 8 | 1 1 3 4 2 1 | C F D G# A# C | medium · barre on fret 8 | |
| x 1 4 3 1 4 | – 1 3 2 1 4 | x A# G# C D G# | medium · barre on fret 1 | |
| 6 3 x 5 7 x | 3 1 – 2 4 – | A# C x D G# x | hard | |
| 6 x 8 5 x 4 | 3 – 4 2 – 1 | A# x C D x G# | hard | |
| 6 x 8 5 7 x | 2 – 4 1 3 – | A# x C D G# x | hard |
The A#9 chord (Dominant 9) is built from the notes A#, D, F, G#, C. Below are playable fingerings for 6-String Guitar – Open A 2 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 A#9 chord is built
Formula: 1 · 3 · 5 · ♭7 · 9
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | A# |
| 3 | 4 | D |
| 5 | 7 | F |
| ♭7 | 10 | G# |
| 9 | 14 | C |
More A# chords
Other roots
See A#9 in another tuning
What notes make up the A#9 chord?
A#9 is a Dominant 9 chord built from the notes A#, D, F, G#, C.
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.