A major's three sharps (F♯, C♯, G♯) place it in a bright, mid-range register that is comfortable for guitar, violin, and vocals. It is one of the most-used keys in rock and pop, offering strong barre-chord and open-chord positions on guitar. Many dance and electronic tracks are written in A major for its driving, upbeat energy.
The major scale’s bright, consonant sound comes from its major 3rd and major 7th — the two intervals that most define a major key. All seven notes form stable triads, making it the most harmonically complete scale in Western music.
The seven diatonic modes — parallel modes starting from the same root with different interval patterns. Each mode has a unique character derived from the major scale.
The diatonic chords in A Major are: A, Bm, C#m, D, E, F#m, G#dim. These are the chords built naturally from each degree of the scale.
What is the Major?
A major's three sharps (F♯, C♯, G♯) place it in a bright, mid-range register that is comfortable for guitar, violin, and vocals. It is one of the most-used keys in rock and pop, offering strong barre-chord and open-chord positions on guitar. Many dance and electronic tracks are written in A major for its driving, upbeat energy.
What notes are in the A Major?
The A Major contains the notes: A, B, C#, D, E, F#, G#. This is a 7-note scale starting from A.
How many chords does the A Major have?
The A Major produces 7 diatonic chords, one built on each degree of the scale: A, Bm, C#m, D, E, F#m, G#dim.
What is the formula for the Major?
The Major follows the interval formula: W-W-H-W-W-W-H (W = whole step, H = half step).
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Position in circle of fifths
A is at the 3 o'clock position. Related keys: E (dominant), D (subdominant), F# (relative minor), B (supertonic), G (subtonic).