<< Complete List of Chords – Index
All chords in the Key of A with notes, formulas, and intervals.
A Chords
A Major and Extended Chords
A major chord
Symbol: A
Chord: A major
Notes: A, C#, E
Formula: 1 – 3 – 5
Interval: A (root note), C# (major third), and E (perfect fifth)
A major sixth chord
Symbol: A6
Chord: A major sixth
Notes: A, C#, E, F#
Formula: 1 – 3 – 5 – 6
Interval: A (root note), C# (major third), E (perfect fifth), and F# (major sixth)
A major seventh chord
Symbol: Amaj7
Chord: A major seventh
Notes: A, C#, E, G#
Formula: 1 – 3 – 5 – 7
Interval: A (root note), C# (major third), E (perfect fifth), and G# (major seventh)
A major ninth chord
Symbol: Amaj9
Chord: A major ninth
Notes: A, C#, E, G#, B
Formula: 1 – 3 – 5 – 7 – 9
Interval: A (root note), C# (major third), E (perfect fifth), G# (major seventh), and B (major ninth)
A major eleventh chord
Symbol: Amaj11
Chord: A major eleventh
Notes: A, C#, E, G#, B, D
Formula: 1 – 3 – 5 – 7 – 9 – 11
Interval: A (root note), C# (major third), E (perfect fifth), G# (major seventh), B (major ninth), and D (perfect eleventh)
A major thirteenth chord
Symbol: Amaj13
Chord: A major thirteenth
Notes: A, C#, E, G#, B, D, F#
Formula: 1 – 3 – 5 – 7 – 9 – 11 – 13
Interval: A (root note), C# (major third), E (perfect fifth), G# (major seventh), B (major ninth), D (perfect eleventh), and F# (major thirteenth)
A major sixth-ninth chord
Symbol: A6/9
Chord: A major sixth-ninth
Notes: A, C#, E, F#, B
Formula: 1 – 3 – 5 – 6 – 9
Interval: A (root note), C# (major third), E (perfect fifth), F# (major sixth), and B (major ninth)
| Chord | Notes |
|---|---|
| A (A major) | A, C#, E |
| A6 (A major sixth) | A, C#, E, F# |
| Amaj7 (A major seventh) | A, C#, E, G# |
| Amaj9 (A major ninth) | A, C#, E, G#, B |
| Amaj11 (A major eleventh) | A, C#, E, G#, B, D |
| Amaj13 (A major thirteenth) | A, C#, E, G#, B, D, F# |
| A6/9 (A major sixth-ninth) | A, C#, E, F#, B |
A Minor Chords
A minor chord
Symbol: Am
Chord: A minor
Notes: A, C, E
Formula: 1 – b3 – 5
Interval: A (root note), C (minor third), and E (perfect fifth)
A minor sixth chord
Symbol: Am6
Chord: A minor sixth
Notes: A, C, E, F#
Formula: 1 – b3 – 5 – 6
Interval: A (root note), C (minor third), E (perfect fifth), and F# (major sixth)
A minor seventh chord
Symbol: Am7
Chord: A minor seventh
Notes: A, C, E, G
Formula: 1 – b3 – 5 – b7
Interval: A (root note), C (minor third), E (perfect fifth), and G (minor seventh)
A minor ninth chord
Symbol: Am9
Chord: A minor ninth
Notes: A, C, E, G, B
Formula: 1 – b3 – 5 – b7 – 9
Interval: A (root note), C (minor third), E (perfect fifth), G (minor seventh), and B (major ninth)
A minor eleventh chord
Symbol: Am11
Chord: A minor eleventh
Notes: A, C, E, G, B, D
Formula: 1 – b3 – 5 – b7 – 9 – 11
Interval: A (root note), C (minor third), E (perfect fifth), G (minor seventh), B (major ninth), and D (perfect eleventh)
A minor thirteenth chord
Symbol: Am13
Chord: A minor thirteenth
Notes: A, C, E, G, B, D, F#
Formula: 1 – b3 – 5 – b7 – 9 – 11 – 13
Interval: A (root note), C (minor third), E (perfect fifth), G (minor seventh), B (major ninth), D (perfect eleventh), and F# (major thirteenth)
| Chord | Notes |
|---|---|
| Am (A minor) | A, C, E |
| Am6 (A minor sixth) | A, C, E, F# |
| Am7 (A minor seventh) | A, C, E, G |
| Am9 (A minor ninth) | A, C, E, G, B |
| Am11 (A minor eleventh) | A, C, E, G, B, D |
| Am13 (A minor thirteenth) | A, C, E, G, B, D, F# |
A Added, Augmented Chords
A added ninth chord
Symbol: Aadd9
Chord: A added ninth
Notes: A, C#, E, B
Formula: 1 – 3 – 5 – 9
Interval: A (root note), C# (major third), E (perfect fifth), and B (major ninth)
A augmented chord
Symbol: Aaug
Chord: A augmented
Notes: A, C#, E# (same as F)
Formula: 1 – 3 – #5
Interval: A (root note), C# (major third), and E# (same as F) (augmented fifth)
A power chord
Symbol: A5
Chord: A power
Notes: A, E
Formula: 1 – 5
Interval: A (root note), and E (perfect fifth)
| Chord | Notes |
|---|---|
| Aadd9 (A added ninth) | A, C#, E, B |
| Aaug (A augmented) | A, C#, E# (same as F) |
| A5 (A power) | A, E |
A Dominant Chords
A dominant seventh chord
Symbol: A7
Chord: A dominant seventh
Notes: A, C#, E, G
Formula: 1 – 3 – 5 – b7
Interval: A (root note), C# (major third), E (perfect fifth), and G (minor seventh)
A dominant ninth chord
Symbol: A9
Chord: A dominant ninth
Notes: A, C#, E, G, B
Formula: 1 – 3 – 5 – b7 – 9
Interval: A (root note), C# (major third), E (perfect fifth), G (minor seventh), and B (major ninth)
A dominant eleventh chord
Symbol: A11
Chord: A dominant eleventh
Notes: A, C#, E, G, B, D
Formula: 1 – 3 – 5 – b7 – 9 – 11
Interval: A (root note), C# (major third), E (perfect fifth), G (minor seventh), B (major ninth), and D (perfect eleventh)
A dominant minor ninth chord
Symbol: A7(b9)
Chord: A dominant minor ninth
Notes: A, C#, E, G, Bb
Formula: 1 – 3 – 5 – b7 – b9
Interval: A (root note), C# (major third), E (perfect fifth), G (minor seventh), and Bb (minor ninth)
A dominant seventh flat five chord
Symbol: A7(b5)
Chord: A dominant seventh flat five
Notes: A, C#, Eb, G
Formula: 1 – 3 – b5 – b7
Interval: A (root note), C# (major third), Eb (diminished fifth), and G (minor seventh)
A dominant seventh sharp ninth chord
Symbol: A7(#9)
Chord: A dominant seventh sharp ninth
Notes: A, C#, E, G, B# (same as C)
Formula: 1 – 3 – 5 – b7 – #9
Interval: A (root note), C# (major third), E (perfect fifth), G (minor seventh), and B# (same as C) (augmented ninth)
A dominant seventh suspended fourth chord
Symbol: A7sus4
Chord: A dominant seventh suspended fourth
Notes: A, D, E, G
Formula: 1 – 4 – 5 – b7
Interval: A (root note), D (perfect fourth), E (perfect fifth), and G (minor seventh)
A dominant thirteenth chord
Symbol: A13
Chord: A dominant thirteenth
Notes: A, C#, E, G, B, D, F#
Formula: 1 – 3 – 5 – b7 – 9 – 11 – 13
Interval: A (root note), C# (major third), E (perfect fifth), G (minor seventh), B (major ninth), D (perfect eleventh), and F# (major thirteenth)
| Chord | Notes |
|---|---|
| A7 (A dominant seventh) | A, C#, E, G |
| A9 (A dominant ninth) | A, C#, E, G, B |
| A11 (A dominant eleventh) | A, C#, E, G, B, D |
| A7(b9) (A dominant minor ninth) | A, C#, E, G, Bb |
| A7(b5) (A dominant seventh flat five) | A, C#, Eb, G |
| A7(#9) (A dominant seventh sharp ninth) | A, C#, E, G, B# (same as C) |
| A7sus4 (A dominant seventh suspended fourth) | A, D, E, G |
| A13 (A dominant thirteenth) | A, C#, E, G, B, D, F# |
A Diminished Chords
A diminished chord
Symbol: Adim
Chord: A diminished
Notes: A, C, Eb
Formula: 1 – b3 – b5
Interval: A (root note), C (minor third), and Eb (diminished fifth)
A diminished seventh chord
Symbol: Adim7
Chord: A diminished seventh
Notes: A, C, Eb, Gb
Formula: 1 – b3 – b5 – bb7
Interval: A (root note), C (minor third), Eb (diminished fifth), and Gb b(diminished seventh)
A half-diminished seventh chord
Symbol: Am7(b5)
Chord: A half-diminished seventh
Notes:
Formula: 1 – b3 – b5 – b7
Interval: (root note), (minor third), (diminished fifth), and (minor seventh)
| Chord | Notes |
|---|---|
| Adim (A diminished) | A, C, Eb |
| Adim7 (A diminished seventh) | A, C, Eb, Gb |
| Am7(b5) (A half-diminished seventh) | |
A Suspended Chords
A suspended second chord
Symbol: Asus2
Chord: A suspended second
Notes: A, B, E
Formula: 1 – 2 – 5
Interval: A (root note), B (major second), and E (perfect fifth)
A suspended fourth chord
Symbol: Asus4
Chord: A suspended fourth
Notes: A, D, E
Formula: 1 – 4 – 5
Interval: A (root note), D (perfect fourth), and E (perfect fifth)
| Chord | Notes |
|---|---|
| Asus2 (A suspended second) | A, B, E |
| Asus4 (A suspended fourth) | A, D, E |
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