|A Major Add 9 chord intervals and notes|
|Intervals||1 - 3 - 5 - 9|
|Notes in A add9||A - C# (Db) - E - B|
As the label indicates, add9 chords are major chords with an added 9th degree note. They are four note chords, as opposed to the original 9 chord, which is a five note chord. An add9 has the notes 1-3-5-9, while the 9-chord has 1-3-5-b7-9. The add9 is a sweet sounding chord, while the 9-chord is dissonant and needs to be resolved.
A Major Add 9 Chord Charts, Fingering, Voicings
Here are 6 voicings of the Aadd9 guitar chord, with a chord chart to each voicings' fingering.