An added ninth chord (add9) is a major triad with an added ninth. Added ninth chords are different from other ninth chords (9, maj9) because the seventh is not included.
| Fret | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Chord | A#/Bb | B | C | C#/Db | D | D#/Eb | E | F | F#/Gb | G | G#/Ab | A |
| Fret | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Chord | F#/Gb | G | G#/Ab | A | A#/Bb | B | C | C#/Db | D | D#/Eb | E | F |
| Fret | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Chord | D#/Eb | E | F | F#/Gb | G | G#/Ab | A | A#/Bb | B | C | C#/Db | D |
C Added Ninth Open Position:
Cadd9 consists of C E G and D. (The D, which might be called an added second, is two fifths up from the root.
