V to I resolution
Use the dominant sound to pull strongly into a stable major tonic.
Guitar chord companion
A13b9 Chord
Learn the A13b9 chord on guitar with chord tones, intervals, and interactive fretboard shapes.
1A3C#5Eb7Gb9Bb13F#
Playable A13b9 Chord voicings
Start with these chord-box shapes, then use the full fretboard below to see every chord tone.
A shape, fret 11
Low to high strings: x 12 11 12 11 14
G shape, fret 2
Low to high strings: 5 x 5 3 2 2
E shape, fret 5
Low to high strings: 5 9 5 6 x 6
D shape, fret 6
Low to high strings: x 9 7 6 8 6
C shape, fret 11
Low to high strings: x 12 11 12 11 14
Full fretboard map
Every A13b9 Chord chord tone across the neck, with roots highlighted for quick orientation.
Frets 0–24. Select a position or tap a note to hear it.
CAGED
Progression examples using A13b9
Try these progressions to hear the harmony in context. On bass, outline each chord with individual target tones.
Minor-key dominant pull
The same dominant root can resolve into a minor tonic for a darker cadence.
Turnaround color
Place the dominant at the end of a turnaround so the next phrase has forward motion.
Chord Tones
| Degree | Interval | Note |
|---|---|---|
| 1 | Root | A |
| 3 | M3 | C# |
| 5 | P5 | E |
| b7 | m7 | G |
| b9 | m9 | Bb |
| 13 | M13 | F# |
Scales Containing the Complete Formula
Complete Formula
1 – 3 – 5 – b7 – b9 – 13
Compound degrees retain their names: 9, 11, and 13 are extensions. A voicing may place their pitches in a closer register.