A major
| Relative key | F-sharp minor |
|---|---|
| Parallel key | A minor |
| Dominant key | E major |
| Subdominant key | D major |
| Component pitches | |
| A, B, C♯, D, E, F♯, G♯ | |
A major is a major scale based on A, with the pitches A, B, C♯, D, E, F♯, and G♯. Its key signature has three sharps. Its relative minor is F-sharp minor and its parallel minor is A minor.
The A major scale is:
Changes needed for the melodic and harmonic versions of the scale are written in with accidentals as necessary. The A harmonic major and melodic major scales are:
In the treble, alto, and bass clefs, the G♯ in the key signature is placed higher than C♯. However, in the tenor clef, it would require a ledger line and so G♯ is placed lower than C♯.