Amadd9: guitar chord voicings, inversions, scales and arpeggios
Amadd9 (madd9) is an interactive GuitarArcanum page with chord formula, intervals, voicings, inversions, triads, pentatonic patterns, scales and arpeggios on the fretboard.
Chord formula
Interval formula: 1 b3 5 9. A minor triad with the 9th added and no 7th — a stark, ringing minor that's open and cinematic.
Chord tones
The triad holds the foundation while the 9th rings on top, brushing against the b3. With no 7th the sound is clean and open, without jazz softness.
Sound character
Stark, ringing and open — a cinematic minor for film scores, indie and atmospheric rock.
Harmonic function
Minor tonic color. The same minor, just brighter and more tense up top.
Typical progressions
- Amadd9 – F – C – G
- Amadd9 – E – F
- arpeggio over Cmadd9
Guitar voicing advice
Often an open shape with the 9th on an open string. Let the 9th ring; watch that it doesn't sound muddy right next to the b3.
Compatible scales for Amadd9
Other chord qualities on the A root
Compare this chord with other qualities sharing the same root.
- A (Major)
- Am (Minor)
- Adim (Diminished)
- Aaug (Augmented)
- Asus4 (Sus4)
- A6 (Maj6)
- Amaj7 (Major 7)
- Amaj7b5 (Maj7b5)
- Amaj7sus4 (Maj7sus4)
- Amaj7#11 (Maj7#11)
- Am6 (Min6)
- Am7 (Minor 7)
- Ammaj7 (MinMaj7)
- A7 (Dominant 7)
- A7b5 (Dom7b5)
- A7sus4 (Dom7sus4)
- A7#11 (Dom7#11)
- Am7b5 (m7b5)
- Adim7 (Dim7)
- Adimmaj7 (DimMaj7)
- Adimmaj7b13 (DimMaj7b13)
- Aaugmaj7 (AugMaj7)
- Aaug7 (Aug7)
- A9 (9)
- Amaj9 (maj9)
- Am9 (m9)
- Aadd9 (add9)
- A7b9 (7b9)
- A7#9 (7#9)
- A6/9 (6/9)
- Am6/9 (m6/9)
- Ammaj9 (m(maj9))
- A9sus4 (9sus4)
- A9b5 (9b5)
- A9#5 (9#5)
- A7b9#9 (7b9#9)
- Asus2 (sus2)
- A11 (11)
- Amaj11 (maj11)
- Am11 (m11)
- A13 (13)
- Amaj13 (maj13)
- Am13 (m13)
- A7b13 (7b13)
- A13#11 (13#11)
- A7alt (7alt)