Amaj9 chord (A major ninth) on guitar
Amaj9 (A major ninth) has five notes: A, C sharp, E, G sharp and B. Its formula is 1, 3, 5, 7, 9. In major keys, Amaj9 is the Imaj9 chord in A major and the IVmaj9 in E major.
Amaj9 chord shapes
Fingers: 1 on D, 3 on G, 2 on B, 4 on e.
Finger 1 barres fret 2, then 4 on E, 3 on e.
Fingers: 3 on E, 1 on A, 4 on D, 2 on G.
Fingers: 2 on E, 1 on A, 3 on D, 4 on G.
Fingers: 1 on E, 4 on A, 2 on D, 3 on G.
Finger 1 barres fret 5, then 3 on A, 2 on D, 2 on G, 4 on e.
Hear it and see every shape in ScaleSpace →
| Symbol | Amaj9 |
|---|---|
| Also written | AM9, AΔ9 |
| Notes | A C# E G# B |
| Formula | 1 3 5 7 9 |
| Intervals | root, major third, perfect fifth, major seventh, major second |
| Type | Major ninth chord |
Amaj9 across the neck
Guitar · 6-string, tuned low to high: E, A, D, G, B, e. 24 frets.
- E string: fret 0 E (5), fret 4 G# (7), fret 5 A (1), fret 7 B (9), fret 9 C# (3), fret 12 E (5), fret 16 G# (7), fret 17 A (1), fret 19 B (9), fret 21 C# (3), fret 24 E (5).
- A string: fret 0 A (1), fret 2 B (9), fret 4 C# (3), fret 7 E (5), fret 11 G# (7), fret 12 A (1), fret 14 B (9), fret 16 C# (3), fret 19 E (5), fret 23 G# (7), fret 24 A (1).
- D string: fret 2 E (5), fret 6 G# (7), fret 7 A (1), fret 9 B (9), fret 11 C# (3), fret 14 E (5), fret 18 G# (7), fret 19 A (1), fret 21 B (9), fret 23 C# (3).
- G string: fret 1 G# (7), fret 2 A (1), fret 4 B (9), fret 6 C# (3), fret 9 E (5), fret 13 G# (7), fret 14 A (1), fret 16 B (9), fret 18 C# (3), fret 21 E (5).
- B string: fret 0 B (9), fret 2 C# (3), fret 5 E (5), fret 9 G# (7), fret 10 A (1), fret 12 B (9), fret 14 C# (3), fret 17 E (5), fret 21 G# (7), fret 22 A (1), fret 24 B (9).
- e string: fret 0 E (5), fret 4 G# (7), fret 5 A (1), fret 7 B (9), fret 9 C# (3), fret 12 E (5), fret 16 G# (7), fret 17 A (1), fret 19 B (9), fret 21 C# (3), fret 24 E (5).
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Questions
What notes are in the Amaj9 chord?
Amaj9 (A major ninth) has five notes: A, C sharp, E, G sharp and B. Its formula is 1, 3, 5, 7, 9. A is the root, C# is the major third, E is the perfect fifth, G# is the major seventh and B is the major second.
How do you play Amaj9 on guitar?
The easiest shape is x02424. Fingers: 1 on D, 3 on G, 2 on B, 4 on e.
What key is Amaj9 in?
In major keys, Amaj9 is the Imaj9 chord in A major and the IVmaj9 in E major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Amaj9 and Amaj7?
Amaj9 is Amaj7 (A, C#, E and G#) with B, the 9th, added.