Scale Reference
A Major | Triads
The A major scale with all 7 diatonic triads mapped across the fretboard. Color-coded by scale degree so you can immediately see the full harmonic structure of the key and where each chord sits on the neck.
Diatonic triads in A major
A major has 7 diatonic triads: A (I), Bm (ii), C#m (iii), D (IV), E (V), F#m (vi), G#dim (vii°). The I–IV–V (A–D–E) is one of the most used progressions in country, rock, and pop music.
Seeing all 7 triads on the neck simultaneously shows you how they overlap with your scale patterns and where shared notes create smooth voice leading between chords.
Why this matters
When you can see the full harmonic map of A major on the fretboard, soloing over chord changes becomes much more intuitive. You know which chord tones to target over each chord | the difference between playing in the key and playing over the changes.
Explore triads interactively
Build progressions, toggle individual chords on and off, and experiment with every triad across the full neck.
Open in Scale Mapper →