Aadd9
Character: shimmering
- ARtriad
- C♯3triad
- E5triad
- B9add
5 ways to play Aadd9
Every voicing sits inside one of the five CAGED shapes, low to high on the neck, with its octave doublings in grey.
- Triad note
- Substitute
- Added
- Anchored root
- Bass
- Doubling
Frets x 0 11 9 10 7Notes C♯ E A BIntervals 3 5 1 9Base triadA major, 1st inversion
The 9th gets a string of its own.
Frets x 12 11 9 12 0Notes A C♯ E BIntervals 1 3 5 9Base triadA major, root position
The 9th gets a string of its own.
Frets x 4 2 2 0 xNotes C♯ E A BIntervals 3 5 1 9Base triadA major, 1st inversion
The 9th gets a string of its own.
Frets 5 4 2 4 2 0Notes A C♯ E BIntervals 1 3 5 9Base triadA major, root position
The 9th gets a string of its own.
Frets 5 0 7 6 5 7Notes A C♯ E BIntervals 1 3 5 9Base triadA major, root position
The 9th gets a string of its own.
The construction rules Aadd9 follows
Start from a triad
Root, 3rd and 5th, stacked in thirds. The 3rd makes it major or minor; the 5th makes it diminished or augmented when it moves.
No 7th, no stack
6, add9, add11 and 6/9 are a triad with a colour note, not a stack. Without a 7th the chord sounds open rather than jazzy.
All the rules, with examples, in the guide to the chord library.
Add 9 in every key
More chords on A
Aadd9 chord questions
What notes are in Aadd9?
Aadd9 is spelled A C♯ E B: A is the root, C♯ is the 3rd, E is the 5th, B is the 9th.
What is the formula of Aadd9?
1 3 5 9. It is a A major triad with the 9th stacked on top.
How many ways can you play Aadd9 on guitar?
This page shows 5 voicings of Aadd9, filed under the five CAGED shapes and named by inversion, from the open position up to the 16th fret.