Harmonic Reference Guide
All A Chords & Voicings
Explore all primary triads and 7th chords built from the A root note. Learn note spelling, interval semitone patterns, and musical functions.
A Harmonic Core Facts
The fundamental chords rooted on A are A Major (A-C#-E), A Minor (A-C-E), and A Dominant 7th (A-C#-E-G). In diatonic harmony, A acts as a stable tonic (I or i) and forms triads with major/minor thirds and fifths.
Chords Rooted on A
AMajor
A
C#
E
Happy, bright, and stable. The most fundamental chord in music.
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AmMinor
A
C
E
Sad, melancholic, and serious. The darker counterpart to the major chord.
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Amaj7Major 7th
A
C#
E
G#
Dreamy, romantic, and sophisticated. Adds a jazzy, smooth color.
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Am7Minor 7th
A
C
E
G
Smooth, cool, and slightly melancholic without being overly sad.
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A7Dominant 7th
A
C#
E
G
Tense, bluesy, and commanding. Wants to resolve to the tonic.
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AdimDiminished
A
C
D#
Tense, creepy, and highly unstable.
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AaugAugmented
A
C#
F
Dreamy, mysterious, and unresolved.
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