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A Major

A major
A-major f-sharp-minor.svg
Relative key F minor
Parallel key A minor
Dominant key E major
Subdominant D major
Component pitches
A, B, C, D, E, F, G, A

A major (or the key of A) 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 key of A major is the only key where a Neapolitan sixth chord on requires both a flat and a natural accidental.

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.


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Wikipedia

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