Article
9th Chords on Guitar: Rich Voicings for Every Genre
Learn 9th chords on guitar - major 9th, minor 9th, dominant 9th, and add9. Shapes, theory, and how to use these lush chords in your playing.
A9 guitar shapes
Popular fretboard positions with fingering suggestions
Showing 8 of 50 playable shapes
About the chord
A9 guitar chord
The A9 dominant 9 chord enriches the dominant 7th by adding a major ninth B, enhancing its tension with a colorful, jazzy flair. This extended harmony adds sophistication, frequently used in jazz, blues, and funk for dynamic progressions.
Root note: A
Quality: 9
Chord tones: 5
Playable shapes: 50
Chord tones
AC♯EGB
Notes & Intervals
Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.
A Unison (Root) 1
The root anchors the chord and defines its tonal center.
C♯ Major Third 3
This note defines the chord's major quality and brings brightness to the sound.
E Perfect Fifth 5
The fifth reinforces stability and gives the chord its strong harmonic frame.
G Minor Seventh ♭7
The minor seventh adds bluesy or jazzy tension that wants to move onward.
B Major Ninth 9
The ninth opens the chord up and adds a modern, spacious color.
Related Articles
Articles that reference this chord and explain how to use it in your playing.
Article
How to Build Your Chord Vocabulary on Guitar: A Systematic Approach
Expand your chord vocabulary systematically. Learn chord families, inversions, extensions, and strategies to master new chords efficiently.
Article
Funk Guitar: Chords, Rhythm, and the 16th-Note Groove
Learn funk guitar rhythm technique with 16th-note strumming, ghost notes, and classic chord shapes. Covers the wah pedal approach, muting, and essential funk progressions.
Article
Neo-Soul Guitar Chords: Extended Voicings for a Modern Sound
Learn the extended chord voicings that define neo-soul guitar. Discover how to play the rich, jazzy harmonies of artists like John Mayer, D'Angelo, and Erykah Badu on guitar.
Article
How to Read Guitar Chord Diagrams
Learn how to read guitar chord diagrams quickly. Understand dots, numbers, Xs, Os, and finger positions so you can play any chord chart at sight.
Article
How to Build Chords from Scratch: Guitar Chord Construction Guide
Learn chord construction step-by-step: intervals, triads, sevenths, and extensions. Build any chord from theory to fretboard.