G9 chord (G dominant ninth) on piano
G9 (G dominant ninth) has five notes: G, B, D, F and A. Its formula is 1, 3, 5, b7, 9. In major keys, G9 is the V9 chord in C major.
G9 inversions and fingering
G B F · LH 5-3-1
G F B D A · RH 1-2-5 · LH 5-1
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| Symbol | G9 |
|---|---|
| Also written | Gdom9 |
| Notes | G B D F A |
| Formula | 1 3 5 b7 9 |
| Intervals | root, major third, perfect fifth, minor seventh, major second |
| Type | Dominant ninth chord |
G9 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: D3 (5), F3 (flat 7), G3 (1), A3 (9), B3 (3), D4 (5), F4 (flat 7), G4 (1), A4 (9), B4 (3).
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Questions
What notes are in the G9 chord?
G9 (G dominant ninth) has five notes: G, B, D, F and A. Its formula is 1, 3, 5, b7, 9. G is the root, B is the major third, D is the perfect fifth, F is the minor seventh and A is the major second.
How do you play G9 on piano?
Play G, B, D, F and A together. Shell (left hand): G B F · LH 5-3-1.
What key is G9 in?
In major keys, G9 is the V9 chord in C major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between G9 and G7?
G9 is G7 (G, B, D and F) with A, the 9th, added.