Aadd9 chord (A added ninth) on piano
Aadd9 (A added ninth) has four notes: A, C sharp, E and B. Its formula is 1, 3, 5, 9. In major keys, Aadd9 is the Iadd9 chord in A major, the IVadd9 in E major and the Vadd9 in D major.
Aadd9 inversions and fingering
A B C# E · RH 1-2-3-5 · LH 5-4-2-1
B C# E A · RH 1-2-3-5 · LH 5-4-2-1
C# E A B · RH 1-2-4-5 · LH 5-3-2-1
E A B C# · RH 1-2-4-5 · LH 5-3-2-1
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| Symbol | Aadd9 |
|---|---|
| Also written | Aadd2 |
| Notes | A C# E B |
| Formula | 1 3 5 9 |
| Intervals | root, major third, perfect fifth, major second |
| Type | Added ninth chord |
Aadd9 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: C#3 (3), E3 (5), A3 (1), B3 (9), C#4 (3), E4 (5), A4 (1), B4 (9).
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Questions
What notes are in the Aadd9 chord?
Aadd9 (A added ninth) has four notes: A, C sharp, E and B. Its formula is 1, 3, 5, 9. A is the root, C# is the major third, E is the perfect fifth and B is the major second.
How do you play Aadd9 on piano?
Play A, C#, E and B together. Root position: A B C# E · RH 1-2-3-5 · LH 5-4-2-1.
What key is Aadd9 in?
In major keys, Aadd9 is the Iadd9 chord in A major, the IVadd9 in E major and the Vadd9 in D major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Aadd9 and A9?
Aadd9 is A9 (A, C#, E, G and B) without G, the flat 7th.