A♭sus4
Sus4 · A♭ – D♭ – E♭
- A♭R
- D♭4
- E♭5
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the A♭sus4 chord
The A♭sus4 chord (Sus4) is built from A♭ (the root), D♭ (a perfect fourth) and E♭ (a perfect fifth). Suspended-fourth chords swap the third for a fourth, creating tension that wants to fall back to the major.