Chord · 9ths
A♭9sus4 — A♭ 9th Sus 4
A♭9sus4 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 Ab (octave 4) and above in the library's voicing; the same 5 notes in any octave are still A♭9sus4.
- Root
- A♭
- Quality
- 9th Sus 4
- Formula
- 1 4 5 ♭7 9
- Notes
- A♭ D♭ E♭ G♭ B♭
On the keyboard
The notes of A♭9sus4
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | A♭ | root | A♭4 |
| 4 | D♭ | perfect 4th | D♭5 |
| 5 | E♭ | perfect 5th | E♭5 |
| ♭7 | G♭ | minor 7th | G♭5 |
| 9 | B♭ | major 9th | B♭5 |
Other 9ths on A♭
9th Sus 4 chords on every root
Part of the chord reference. See also the scales and the keys.