A#madd9 Chord
Chord Tones
| Interval | Note |
|---|---|
| Perfect 1st | A# |
| Minor 3rd | C# |
| Perfect 5th | F |
| Major 9th | C |
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Tetrad (four-note chord) rooted on A#（Chord Tones: A#, C#, F, C）
| Interval | Note |
|---|---|
| Perfect 1st | A# |
| Minor 3rd | C# |
| Perfect 5th | F |
| Major 9th | C |
