Asus4
A Suspended 4th — the fourth suspends over the harmony and pulls down to the third — tension and release in one move.
The keys
A – D – E
What's inside Asus4
| Note | Interval from root | Degree |
|---|---|---|
| A | Root | 1 |
| D | Perfect 4th | 4 |
| E | Perfect 5th | 5 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | A4 – D5 – E5 |
| 1st inversion | D5 – E5 – A5 |
| 2nd inversion | E5 – A5 – D6 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | A2 – E3 |
| Right (colour) | D5 – E5 |
Where Asus4 lives
Suspend and resolve
Asus4 → A
The suspension releases into the plain triad — tension, then home.
As a pad colour
Asus → G → D
Kept unresolved, the sus chord floats — a staple of modern pads.
Put Asus4 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →