A major the chords in the key
- Scale
- A B C# D E F# G#
- Key signature
- three sharps: F# C# G#
- Relative minor
- F# minor
The seven chords
| Numeral | Chord | Notes | Sound |
|---|---|---|---|
| I | A | A C# E | |
| ii | Bm | B D F# | |
| iii | C#m | C# E G# | |
| IV | D | D F# A | |
| V | E | E G# B | |
| vi | F#m | F# A C# | |
| vii° | G#dim | G# B D |
Seventh chords
| Numeral | Chord | Notes | Sound |
|---|---|---|---|
| Imaj7 | Amaj7 | A C# E G# | |
| ii7 | Bm7 | B D F# A | |
| iii7 | C#m7 | C# E G# B | |
| IVmaj7 | Dmaj7 | D F# A C# | |
| V7 | E7 | E G# B D | |
| vi7 | F#m7 | F# A C# E | |
| viiø7 | G#m7b5 | G# B D F# |
Common progressions in A major
- I–V–vi–IV the four-chord pop loop
- I–IV–V three-chord rock, folk and country
- ii–V–I the jazz cadence, in sevenths
- vi–IV–I–V the same four chords starting on the minor one
- 12-bar blues one chord per bar; every chord a dominant 7, which the major scale alone does not give
On guitar
Capo 2. With a capo on fret 2, play the open shapes G for A, C for D, D for E, Em for F#m: they sound as the I, IV, V and vi (A, D, E and F#m).
How the chords of A major work
A major uses the notes A B C# D E F# G#, three sharps: F# C# G#. Stack every other note of that scale on each degree and you get the seven chords above: three major (A, D and E: I, IV and V), three minor (Bm, C#m and F#m: ii, iii and vi) and one diminished (G#dim, vii°). Most songs in A lean on A, D and E, with F#m as the fourth chord.
The V7, E7 (E G# B D), is the chord that sounds like it wants to come home: its G# rises a semitone to A and its D falls a semitone to C#. A song that ends E7 to A is almost certainly in A major.
F#m is also the home chord of F# minor, the relative minor: it uses exactly the same seven notes and the same seven chords. So a chord list from this page can be in either key; it is usually in the one whose home chord it starts or ends on.
Have a list of chords and not sure of the key? The key finder scores it against all 24 keys and can transpose it.
What this page cannot do
- Only major and minor keys. Dorian, Mixolydian and the other modes are not covered: a song in D Mixolydian (D, C, G) uses the chords of G major and will look like G major here.
- Finding a key from chord names is a best fit, not a certainty. A chord list cannot tell a key from its relative minor, which shares every chord; the melody and where the song comes to rest decide it.
- Songs change key. A bridge or a last chorus a step higher is a new key, with its own page.
- The sound is a simple synthesised tone made in your browser, each chord in root position, not a recorded piano or guitar.