ChordKeysChord & scale reference

A Major Scale

The A major scale (also called A Ionian) contains A – B – C# – D – E – F# – G#. Its key signature has 3 sharps: F#, C# and G#.

ABC#DEF#G#
NoteABC#DEF#G#A
Right hand12312345
Left hand54321321

Piano fingering for one octave going up; 1 is the thumb. Coming down, play the same fingers in reverse.

A major scale fingering

Right hand, going up: the thumb tucks under to D. Left hand, going up: finger 3 crosses over the thumb to F#. Practise each hand alone, slowly, until the turns are smooth, then play hands together.

A major scale on a piano keyboard: A B C♯ D E F♯ G♯ A, right hand fingering 1 2 3 1 2 3 4 5, left hand 5 4 3 2 1 3 2 1

Key signature

A major has 3 sharps: F#, C# and G#. Its relative minor is F# minor, which uses the same notes and key signature. See the chords in the key of A major and of F# minor.

Scale degrees

DegreeNoteSemitones from A
1A0
2B2
3C#4
4D5
5E7
6F#9
7G#11

Step pattern

The Major scale is built from the pattern W – W – H – W – W – W – H (W = whole step, H = half step). Apply that pattern from any starting note and you get the same mode in a different key.

Chords in A Major

Building a triad on each degree of the scale gives you the chords that belong to it. These are the chords to reach for when writing in A Major.

DegreeNumeralChordNotes
1IAA C# E
2iiBmB D F#
3iiiC#mC# E G#
4IVDD F# A
5VEE G# B
6viF#mF# A C#
7vii°G#dimG# B D

Other modes on A

More scales on A

Major scale in other keys

Frequently asked questions

What notes are in the A Major scale?

The A Major scale contains A, B, C#, D, E, F#, G#, then returns to A an octave higher.

What is the fingering for the A major scale on piano?

Going up from A to A, the right hand plays 1 2 3 1 2 3 4 5 and the left hand plays 5 4 3 2 1 3 2 1, where 1 is the thumb. Coming down, use the same fingers in reverse.

How many sharps are in A major?

A major has 3 sharps: F#, C# and G#.

What is the step pattern of the Major scale?

The Major scale follows the whole/half step pattern W – W – H – W – W – W – H, where W is a whole step (two semitones) and H is a half step (one semitone).

Which chords work with the A Major scale?

The diatonic chords are A, Bm, C#m, D, E, F#m, G#dim. Each is built only from notes of the A Major scale, so they all belong to the same tonality — though the diminished chord carries a tritone and normally wants to resolve.