Gadd9 Chord
Chord Tones
| Interval | Note |
|---|---|
| Perfect 1st | G |
| Major 3rd | B |
| Perfect 5th | D |
| Major 9th | A |
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Tetrad (four-note chord) rooted on G（Chord Tones: G, B, D, A）
| Interval | Note |
|---|---|
| Perfect 1st | G |
| Major 3rd | B |
| Perfect 5th | D |
| Major 9th | A |
