Abadd9 chord (A flat added ninth) on guitar
Abadd9 (A flat added ninth) has four notes: A flat, C, E flat and B flat. Its formula is 1, 3, 5, 9. In major keys, Abadd9 is the Iadd9 chord in Ab major, the IVadd9 in Eb major and the Vadd9 in Db major.
Abadd9 chord shapes
Finger 1 barres fret 4, then 3 on A, 3 on D, 2 on G, 4 on e.
Finger 1 barres fret 3, then 2 on E, 4 on D, 3 on B, 3 on e.
Finger 1 barres fret 1, then 4 on E.
Finger 1 barres fret 1, then 4 on E, 3 on G.
Finger 1 barres fret 8, then 4 on A, 2 on B.
Finger 1 barres fret 3, then 2 on E, 3 on B, 4 on e.
Hear it and see every shape in ScaleSpace →
| Symbol | Abadd9 |
|---|---|
| Also written | Abadd2 |
| Notes | Ab C Eb Bb |
| Formula | 1 3 5 9 |
| Intervals | root, major third, perfect fifth, major second |
| Type | Added ninth chord |
Abadd9 across the neck
Guitar · 6-string, tuned low to high: E, A, D, G, B, e. 24 frets.
- E string: fret 4 Ab (1), fret 6 Bb (9), fret 8 C (3), fret 11 Eb (5), fret 16 Ab (1), fret 18 Bb (9), fret 20 C (3), fret 23 Eb (5).
- A string: fret 1 Bb (9), fret 3 C (3), fret 6 Eb (5), fret 11 Ab (1), fret 13 Bb (9), fret 15 C (3), fret 18 Eb (5), fret 23 Ab (1).
- D string: fret 1 Eb (5), fret 6 Ab (1), fret 8 Bb (9), fret 10 C (3), fret 13 Eb (5), fret 18 Ab (1), fret 20 Bb (9), fret 22 C (3).
- G string: fret 1 Ab (1), fret 3 Bb (9), fret 5 C (3), fret 8 Eb (5), fret 13 Ab (1), fret 15 Bb (9), fret 17 C (3), fret 20 Eb (5).
- B string: fret 1 C (3), fret 4 Eb (5), fret 9 Ab (1), fret 11 Bb (9), fret 13 C (3), fret 16 Eb (5), fret 21 Ab (1), fret 23 Bb (9).
- e string: fret 4 Ab (1), fret 6 Bb (9), fret 8 C (3), fret 11 Eb (5), fret 16 Ab (1), fret 18 Bb (9), fret 20 C (3), fret 23 Eb (5).
Swipe the chart sideways to see all of it.
Questions
What notes are in the Abadd9 chord?
Abadd9 (A flat added ninth) has four notes: A flat, C, E flat and B flat. Its formula is 1, 3, 5, 9. Ab is the root, C is the major third, Eb is the perfect fifth and Bb is the major second.
How do you play Abadd9 on guitar?
The easiest shape is 466546. Finger 1 barres fret 4, then 3 on A, 3 on D, 2 on G, 4 on e.
What key is Abadd9 in?
In major keys, Abadd9 is the Iadd9 chord in Ab major, the IVadd9 in Eb major and the Vadd9 in Db major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Abadd9 and Ab9?
Abadd9 is Ab9 (Ab, C, Eb, Gb and Bb) without Gb, the flat 7th.