Root position Aadd9
A – C♯ – E – B
Right hand 1-2-3-5Left hand 5-4-3-1
Aadd9 Chord on Piano
Aadd9 A C♯ E B Formula 1 3 5 9 4 notes
Notes
What notes are in the Aadd9 chord?
The Aadd9 chord has 4 notes: A, C♯, E, B. The major triad plus the ninth (the second, an octave up): played close, the ninth sits right above the fifth.
| Note | Interval from the root | Half steps |
|---|---|---|
| A | Root | 0 |
| C♯ | Major 3rd | 4 |
| E | Perfect 5th | 7 |
| B | Major 9th | 14 |
Inversions and fingering
Every way to play Aadd9
The same notes in a different order. The lowest note changes the name after the slash; the fingering below is the usual one - right hand from the lowest key up, left hand from the lowest key up too.
1st inversion Aadd9/C♯
C♯ – E – A – B
Right hand 1-2-3-5Left hand 5-4-3-1
2nd inversion Aadd9/E
E – A – C♯ – B
Right hand 1-2-3-5Left hand 5-4-3-1
Where it lives
Keys and scales with Aadd9
Every key where Aadd9 is one of the seven chords, with its Roman numeral, and the scales whose notes include all of it - the ones to improvise over it.
Aadd9 is not a diatonic chord of any major or natural minor key.
Scales that contain all its notes
Questions
Frequently asked
What notes are in the Aadd9 chord?
The Aadd9 chord (Aadd9) is made of A, C♯, E, B. Its formula is 1 3 5 9 - the root, then the intervals of a add 9 chord.
How do you play Aadd9 on the piano?
Put your right thumb on A and play the other notes with fingers 1-2-3-5. With the left hand, use fingers 5-4-3-1 from the lowest key up.
What are the inversions of Aadd9?
root position Aadd9 (A C♯ E B); 1st inversion Aadd9/C♯ (C♯ E A B); 2nd inversion Aadd9/E (E A C♯ B).
Play it for real
Hold Aadd9 and build a progression on it
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