Guitar Chord Asus4: Structure, Notes and Theory

Asus4 — a chord built on the note “A” with gentle harmonic tension that naturally resolves. A classic way to create motion between stable chords and enrich the harmony.

Formula and Structure of the Asus4 Chord

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

• A — unison and the main tonal anchor.
• D — perfect fourth with a spicy flavor, best voiced apart from the third.
• E — perfect fifth, stabilizing the triad and adding tonal grounding.

Together, these notes form the harmonic foundation of the Asus4 chord, defining its sound and role in the musical context.

Alternative Names for the Asus4 Chord

This chord may appear under different names:

• Asus

All variants refer to the same harmonic structure.

Using the Asus4 Chord

Separate the 4 and 3 into different registers to avoid conflict. For natural movement, use a sus4 -> triad cadence. Fits well for soft tension before resolution. Sounds great with the 4 in the top voice.

Conclusion

Asus4 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.