Cadencove

Discover the chord. Understand the music.

Explore notes on guitar or piano, uncover their harmony, and turn your ideas into practice.

Standard tuning E2–A2–D3–G3–B3–E4 · Shape 5–0–7–6–0–0
Open
Open
Fret 6
Fret 7
Open
Fret 5
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Tap a fret to place a finger (tap again to mute). O = open string, ✕ = muted. One sounding note per string.

Selected:A2A3B3D♭4E4
  • Root
  • 3rd / sus
  • 5th
  • 7th
  • 6th / extensions

Aadd9

A added ninth

A major triad with an added ninth, without the seventh.

Chord tones
A1 · RootC♯3 · 3rdE5 · 5thB9 · Ext
Formula
1–3–5–9
Root / bass
A / A
Notes played (low → high)
A2 · A3 · B3 · D♭4 · E4

Aadd9 · added ninth

How to Use This Chord

Sound & role

Adds colour to a triad; its key and surrounding chords determine its harmonic role.

Genre examples

Pop
Folk
Rock

Examples of musical settings, not restrictions or claims about how often this chord appears.

Connection & passing potential

No specific chromatic passing use is established by these notes alone. A passing function requires a starting chord, a destination and voice movement.

Diatonic context · example keys

Every chord tone fits these example keys. Other keys may also fit; the chord root is not assumed to be the tonic.

D♭ minor · VIadd9

natural minor

D major · Vadd9

major

Hear it in context

A phrase in D♭ minor

  1. C♯m
  2. Aadd9
  3. A♭7
  4. C♯m

Hear Aadd9 in a tonic–chord–dominant–tonic phrase. Its role depends on its position, not just its quality.