A add nine guitar chord (Aadd9)
An add9 chord adds the ninth (the second, an octave up) to a major chord, without the seventh. It enriches the sound while staying bright: popular in pop and folk.
Positions and fingerings
Position 1 open position
Position 2 fret 5
× muted string · o open string · numbers: fingers (1 index, 2 middle, 3 ring, 4 pinky)
Chord notes
| Note | Interval |
|---|---|
| A | root |
| C♯ (C sharp) | major third |
| E | perfect fifth |
| B | major ninth |
Formula: 1 – 3 – 5 – 9 · A – C♯ – E – B
A progression with this chord
The chord replaces the first degree of a pop progression to enrich it.