Banjo · key of A major

Chords in the key of A major

The seven chords in the key of A major are A, Bm, C♯m, D, E, F♯m and G♯dim. A, D and E are the major chords (I, IV and V), Bm, C♯m and F♯m are the minor chords (ii, iii and vi), and G♯dim is diminished (vii°). Its relative minor is F♯ minor, which uses the same seven chords.

The chords of A major
NumeralTriadNotesSeventh chordNotesNumberRole
IAhomeA C♯ EAmaj7homeA C♯ E G♯1tonic
iiBmrestlessB D F♯Bm7restlessB D F♯ A2msupertonic
iiiC♯mhalf-lightC♯ E G♯C♯m7half-lightC♯ E G♯ B3mmediant
IVDthe doorD F♯ ADmaj7the doorD F♯ A C♯4subdominant
VEthe pullE G♯ BE7the pullE G♯ B D5dominant
viF♯mthe shadowF♯ A C♯F♯m7the shadowF♯ A C♯ E6msubmediant
vii°G♯dimthe edgeG♯ B DG♯m7♭5the edgeG♯ B D F♯7°leading tone

Strum or arpeggiate any chord, tap a note to hear it, drag the strip under a picture to play it further up the neck, or pick another inversion. Library opens the chord there, with every other way to play it.

A

LibraryBanjo · Standard

I · tonic

GDGBD5R35noteEAC♯Erole5R35fret2222fret 2C3C4C5C6

Bm

LibraryBanjo · Standard

ii · supertonic

GDGBDR5noteDBBF♯role♭3RR5fret0404fret 4C3C4C5C6

C♯m

LibraryBanjo · Standard

iii · mediant

GDGBD♭35R♭3noteEG♯C♯Erole♭35R♭3fret2122frets 1–2C3C4C5C6

D

LibraryBanjo · Standard

IV · subdominant

GDGBD5R3noteDADF♯roleR5R3fret0234frets 2–4C3C4C5C6

E

LibraryBanjo · Standard

V · dominant

GDGBDR3RnoteEG♯BEroleR35Rfret2102frets 1–2C3C4C5C6

F♯m

LibraryBanjo · Standard

vi · submediant

GDGBDR♭35RnoteF♯AC♯F♯roleR♭35Rfret4224frets 2–4C3C4C5C6

G♯dim

LibraryBanjo · Standard

vii° · leading tone

GDGBDRnoteDG♯BDrole♭5R♭3♭5fret0100fret 1C3C4C5C6

Chord progressions in A major

Press a chord to hear it and see its shape, or Play to hear the progression on banjo. The colours say what each chord does in the key.

Tempo85

↓ · ↓ ↑ · ↑ ↓ ↑ · Down, down-up, up-down-up: the campfire strum, also called the calypso strum.

Colours

homethe pullthe doorthe shadowrestlesshalf-light

What each chord does in its key. Press a chord to hear it and read more.

The three-chord trick

I | IV | V | I

Chord chart

The chords of countless folk, country, blues and rock and roll songs.

The pop progression

I | V | vi | IV

Chord chart

I–V–vi–IV, behind a great many hits since the 1980s.

The fifties progression

I | vi | IV | V

Chord chart

I–vi–IV–V, the doo-wop changes.

The pop progression from its minor chord

vi | IV | I | V

Chord chart

vi–IV–I–V: the pop progression started on its minor chord, which gives it a sadder sound.

The royal road

IV | V | iii | vi

Chord chart

IV–V–iii–vi, a favourite of Japanese pop.

ii–V–I

ii7 | V7 | Imaj7 | Imaj7

Chord chart

The turnaround of jazz, in seventh chords.

The relative minor: F♯ minor

F♯ minor has the same notes and the same seven chords as A major, starting from F♯. A song in one often moves to the other. The parallel minor, A minor, starts on the same note with a different set of chords.

Play it with a capo

A major takes barre chords on banjo. A capo lets you play it with the open shapes of an easier key:

  • Capo 2, the shapes of G major: G, Am, Bm, C, D, Em and F♯dim
  • Capo 7, the shapes of D major: D, Em, F♯m, G, A, Bm and C♯dim

The A major scale and key signature

The notes of A major are A, B, C♯, D, E, F♯, G♯. Its key signature has three sharps: C♯, F♯ and G♯. Each chord of the key is built from these notes, a third apart: a chord on every note of the scale. See the A major scale on the banjo neck, and the A major pentatonic.

Keys nearby

On the circle of fifths, E major and D major sit on either side of A major. Each shares six of its seven notes, which makes them the easiest keys to change to.

Every key

CD♭DE♭EFF♯GA♭AB♭B

C minorC♯ minorD minorE♭ minorE minorF minorF♯ minorG minorG♯ minorA minorB♭ minorB minor

All twenty-four on one page: chords in every key. To print these chords, open them as a chord chart, or make your own in the chord chart maker. This key on guitar, bass, ukulele and mandolin.