A Add9 Chord on Piano
The A Add9 chord contains A, B, D♭ and E — 4 notes. Every one is marked across three octaves of the keyboard below, labelled with note names and with interval numbers.
- Root
- Major 2nd
- Major 3rd
- Perfect 5th
| Degree | 1 | 2 | 3 | 5 |
|---|---|---|---|---|
| Note | A | B | D♭ | E |
| Interval | Root | Major 2nd | Major 3rd | Perfect 5th |
Note names
Interval numbers
Scales containing A Add9
| Major (Ionian) | D E A |
| Natural Minor (Aeolian) | D♭ F# B |
| Dorian | E F# B |
| Phrygian | D♭ F# A♭ |
| Lydian | D G A |
| Mixolydian | E A B |
| Locrian | D♭ E♭ A♭ |
| Harmonic Lydian (Lydian ♭6) | F A |
| Melodic Minor | D E |
| Melodic Minor ♯4 | D |
| Major Pentatonic | A |
| Minor Pentatonic | F# |
| Dominant Pentatonic (Mixolydian Pentatonic) | A |
| Minor Sixth Pentatonic | E |
| Blues | F# |
| Tcherepnin (M3) | E♭ G B |
Circle of fifths
Frequently asked questions
What notes are in the A Add9 chord?
A, B, D♭ and E. That is 4 notes.
How is the A Add9 chord built?
From a root of A: B is the major 2nd, D♭ is the major 3rd and E is the perfect 5th.
Which scales contain the A Add9 chord?
D Major (Ionian), D♭ Natural Minor (Aeolian), E Dorian and D♭ Phrygian, among others. Every note of the A Add9 chord is in those, so they can be played over it.
Which smaller chords are inside the A Add9 chord?
A Major, A Sus2, E Sus4 and E Power (5). Each uses only notes the A Add9 chord already contains.
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