semicord

G major the chords in the key

Scale
G A B C D E F#
Key signature
one sharp: F#
Relative minor
E minor

The seven chords

NumeralChordNotesSound
IGG B D
iiAmA C E
iiiBmB D F#
IVCC E G
VDD F# A
viEmE G B
vii°F#dimF# A C

Seventh chords

NumeralChordNotesSound
Imaj7Gmaj7G B D F#
ii7Am7A C E G
iii7Bm7B D F# A
IVmaj7Cmaj7C E G B
V7D7D F# A C
vi7Em7E G B D
viiø7F#m7b5F# A C E

Common progressions in G major

On guitar

No capo needed. The I, IV, V and vi (G, C, D and Em) are all open-position chords already.

How the chords of G major work

G major uses the notes G A B C D E F#, one sharp: F#. Stack every other note of that scale on each degree and you get the seven chords above: three major (G, C and D: I, IV and V), three minor (Am, Bm and Em: ii, iii and vi) and one diminished (F#dim, vii°). Most songs in G lean on G, C and D, with Em as the fourth chord.

The V7, D7 (D F# A C), is the chord that sounds like it wants to come home: its F# rises a semitone to G and its C falls a semitone to B. A song that ends D7 to G is almost certainly in G major.

Em is also the home chord of E 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.