Asus4, also called A suspended fourth, contains A, D and E. Use the piano diagram to find the notes, hear the chord and explore its inversions.
Asus4 is a suspended-fourth chord built from A, D and E. It uses 1–4–5 and contains no third.
Preserve the written note spelling shown for this chord.
Choose a position to keep the written notes, sounding keys, bass note, playback and print reference synchronized.
Asus4 uses 1–4–5: A–D–E.
Compared with A major, replace the third with the fourth.
The chord tones stay the same while the lowest chord tone changes.
| Position | Symbol | Notes, low to high | Bass |
|---|---|---|---|
| Root position, current selection | Asus4 | A3–D4–E4 | A3 |
| First inversion | Asus4/D | D4–E4–A4 | D4 |
| Second inversion | Asus4/E | E4–A4–D5 | E4 |
Fingerings are not included on this page. The diagram shows note positions, not a prescribed hand shape.
Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.
Read left- and right-hand finger numbersPianoChord.org
Supports: sus4 chord formula and written tone pattern
Scope: Supports the chord formula and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.
Asus4 contains A, D and E.
1–4–5.
No. A sus4 chord replaces the third with the fourth, so Asus4 uses D instead of C or C♯.
Select the three pitch classes that make Asus4, then check your answer.
This one-octave exercise checks pitch classes. Order and octave do not affect the result; fingering and live performance are not assessed.
One octave, C through B. Select a key again to remove it.
Chord tones: A–D–E · Formula: 1, 4, 5
Dots mark the notes to play. C4 is middle C. Numbers identify octaves, not fingers.