A Chords
All chord variations built on A (La)
A Major Scale (Chord Formula Reference)
A
B
C#
D
E
F#
G#
Steps: W W H W W W H
Chord formulas reference degrees from this scale (e.g., 1-3-5 = A-C#-E)
Triads
Basic three-note chords that form the foundation of harmony
Sevenths
Four-note chords adding richness and sophistication to your sound
Suspended
Chords that replace the third with a second or fourth for tension
Extended
Chords with added notes beyond the basic triad for color
Altered
Chords with modified tones creating unique harmonic textures