Major Triad · GUITAR FRETBOARD
A Major Triad on the guitar fretboard
All 35 positions of the A Major Triad (R 4 7) on a standard-tuned guitar with 22 frets.
Notes and intervals
The A Major Triad is built from these tones — each shown with its interval (in semitones) above the root:
- A · R
- C♯ · 4
- E · 7
All positions on the neck
- 1st (high E) string · open string (fret 0) · 7
- 1st (high E) string · fret 5 · R
- 1st (high E) string · fret 9 · 4
- 1st (high E) string · fret 12 · 7
- 1st (high E) string · fret 17 · R
- 1st (high E) string · fret 21 · 4
- 2nd (B) string · fret 2 · 4
- 2nd (B) string · fret 5 · 7
- 2nd (B) string · fret 10 · R
- 2nd (B) string · fret 14 · 4
- 2nd (B) string · fret 17 · 7
- 2nd (B) string · fret 22 · R
- 3rd (G) string · fret 2 · R
- 3rd (G) string · fret 6 · 4
- 3rd (G) string · fret 9 · 7
- 3rd (G) string · fret 14 · R
- 3rd (G) string · fret 18 · 4
- 3rd (G) string · fret 21 · 7
- 4th (D) string · fret 2 · 7
- 4th (D) string · fret 7 · R
- 4th (D) string · fret 11 · 4
- 4th (D) string · fret 14 · 7
- 4th (D) string · fret 19 · R
- 5th (A) string · open string (fret 0) · R
- 5th (A) string · fret 4 · 4
- 5th (A) string · fret 7 · 7
- 5th (A) string · fret 12 · R
- 5th (A) string · fret 16 · 4
- 5th (A) string · fret 19 · 7
- 6th (low E) string · open string (fret 0) · 7
- 6th (low E) string · fret 5 · R
- 6th (low E) string · fret 9 · 4
- 6th (low E) string · fret 12 · 7
- 6th (low E) string · fret 17 · R
- 6th (low E) string · fret 21 · 4
About the Major Triad
A major triad is the harmonic core of major-key music: the root, a major third (4 semitones) and a perfect fifth (7). These three tones of A major repeat all over the neck — learning the shapes lets you find A anywhere and build CAGED chord voicings.
Practice tips
Anchor every shape to its root — the gold R markers — and learn the distance to the other tones. The same shape transposes to any root by sliding it along the neck.
Open the interactive trainer and tap every A Major Triad tone across all six strings until the shape is automatic.