Guitar Chord Ab7sus4: Structure, Notes and Theory

Ab7sus4 — a chord from the note “Ab” with suspended dominant tension and a fourth instead of a third. Excellent for sustaining expectation in cadences, intros and bridges, adding motion without harshness. Sounds great in rhythmic picking.

Formula and Structure of the Ab7sus4 Chord

Interval formula from the root note: 1 — 4 — 5 — b7. The chord consists of the following notes:

• Ab — unison and the main tonal anchor.
• Db — perfect fourth with a spicy flavor, best voiced apart from the third.
• Eb — perfect fifth, stabilizing the triad and adding tonal grounding.
• Gb — minor seventh with dominant pull toward the tonic.

Together, these notes form the harmonic foundation of the Ab7sus4 chord, defining its sound and role in the musical context.

Alternative Names for the Ab7sus4 Chord

There are no alternative names for this chord.

Using the Ab7sus4 Chord

Hold the 4 in the top voice and resolve it to 3 for a V -> I cadence. Keep b7 stable in the middle voice, and on top add 9 or 13 for brightness. In rhythm parts use syncopated strokes and quartal voicings. Avoid doubling the 4 in the low register to keep the bass light.

Conclusion

Ab7sus4 is an expressive and versatile chord. Learn several fingerings, experiment with different positions and voice spacing, then try weaving it into your own playing — this will help you quickly find your unique tone.