A Major Scale

The A major scale is a seven-note scale based on the note A, and like all major scales,

The major scale follows this interval pattern:
Whole, Whole, Half, Whole, Whole, Whole, Half

Key signature: 3 sharps (F#, C#, G#)

A to B = Whole step (2 semitones)
B to C# = Whole step (2 semitones)
C# to D = Whole step (2 semitones)
D to E = Half step (1 semitone)
E to F# = Whole step (2 semitones)
F# to G# = Whole step (2 semitones)
G# to A = Half step (1 semitone)




In classical music, the A major scale is used for both melodic and harmonic purposes, including in tonic-dominant relationships where A major (I) and E major (V) are used for cadences.