Chord · 9ths
A9sus4 — A 9th Sus 4
A9sus4 is the A 9th sus 4 chord. It is built on the root A with perfect 4th (D), perfect 5th (E), minor 7th (G) and major 9th (B) above it — the formula 1 4 5 ♭7 9, sounding the notes A D E G B. On the piano it sits at A (octave 3) and above in the library's voicing; the same 5 notes in any octave are still A9sus4.
- Root
- A
- Quality
- 9th Sus 4
- Formula
- 1 4 5 ♭7 9
- Notes
- A D E G B
On the keyboard
The notes of A9sus4
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | A | root | A3 |
| 4 | D | perfect 4th | D4 |
| 5 | E | perfect 5th | E4 |
| ♭7 | G | minor 7th | G4 |
| 9 | B | major 9th | B4 |
Other 9ths on A
9th Sus 4 chords on every root
Part of the chord reference. See also the scales and the keys.