Aadd9 Guitar Chord | Play, Hear and Practice Interactively

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An Aadd9 chord, also called A add nine, is made of A, C#, E and B. The B is the ninth, the same pitch as the second of the scale, one octave higher.

Six voicings are mapped out here, five of them with open strings, and the lowest starts at the 2nd fret. The distance from the root to the ninth is fourteen semitones, a major second plus an octave. For a simpler, more open sound, the A major pentatonic scale holds every chord tone and skips the fourth and seventh of the major scale. Barre shapes, covered in barre chords, let you move a chord up the neck.

Use the interactive fretboard above to hear the chord as a strum and as an arpeggio.

A added 9th guitar chord is also written as Aadd9, A(add9), Aadd2 or Amaj(add9).

Notes that compose the A add9 chord:

A C# E B

Chord Structure:

Formula: 1 3 5 9

A Add9 Guitar Chord Diagrams

Position 1 Open

Finger Positions

Mute the low E string
Let the A string play without pressing any fret
Let the B string play without pressing any fret
Let the high E string play without pressing any fret
Place your index finger (1) on the fret 6 of the G string
Place your middle finger (2) on the fret 7 of the D string

Position 2 Open

Finger Positions

Mute the low E string
Let the A string play without pressing any fret
Let the high E string play without pressing any fret
Place your index finger (1) on the fret 2 of the D string
Place your middle finger (2) on the fret 2 of the B string
Place your pinky finger (4) on the fret 4 of the G string

Position 3 Open

Finger Positions

Let the B string play without pressing any fret
Let the high E string play without pressing any fret
Place your index finger (1) on the fret 5 of the low E string
Place your middle finger (2) on the fret 6 of the G string
Place your ring finger (3) on the fret 7 of the A string
Place your pinky finger (4) on the fret 7 of the D string

Position 4 Movable

Finger Positions

Mute the low E string
Mute the A string
Place your index finger (1) on the fret 5 of the B string
Place your middle finger (2) on the fret 6 of the G string
Place your ring finger (3) on the fret 7 of the D string
Place your pinky finger (4) on the fret 7 of the high E string

Position 5 Open

Finger Positions

Let the low E string play without pressing any fret
Let the B string play without pressing any fret
Let the high E string play without pressing any fret
Place your middle finger (2) on the fret 6 of the G string
Place your ring finger (3) on the fret 7 of the A string
Place your pinky finger (4) on the fret 7 of the D string

Position 6 Open

Finger Positions

Mute the low E string
Let the B string play without pressing any fret
Let the high E string play without pressing any fret
Place your index finger (1) on the fret 6 of the G string
Place your middle finger (2) on the fret 7 of the A string
Place your ring finger (3) on the fret 7 of the D string

Find more shapes in our all guitar chords online library. If you prefer a printable pdf, download the Free Guitar Chords Chart Pdf

Play This Chord With Other Roots

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Created by

Giancarlo Facoetti

Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher

FAQ

What notes are in A add nine?

A add nine contains A, C#, E and B: root, major third, perfect fifth and ninth. B is an octave and a whole step up from A.

How many voicings does Aadd9 have?

Aadd9 has 6 voicings, 5 of them with open strings and none using a barre. The highest one reaches the 7th fret.

How does A add nine differ from Asus2?

Asus2 swaps the third for the second, giving A, B, E. A add nine keeps C#, the third, and also includes B as the ninth.

Which scale fits Aadd9?

The A major scale: A, B, C#, D, E, F#, G#. All four notes of the chord belong to it.