The A-flat suspended fourth chord (abbreviated "Absus4 chord") is a triad consisting of the notes A, D, and E. The chord is formed by replacing the third of a A-flat major chord with a perfect fourth.

Name
A-flat suspended fourth chord
Notes
A D E
Intervals
1 4 5
Chord symbol
Asus4
Alternative symbols
A(sus4) Asus
Type
Triad (three-note chord)

Absus4 chord on piano

Absus4 chord on guitar

Absus4 chord on ukulele

Absus4 chord on the staff