Arpeggio quality

aug

The augmented triad raises the fifth of a major triad, producing two major thirds stacked on top of each other and a perfectly symmetrical shape. That symmetry means the chord has no fixed root: every note can be heard as the bottom, which gives it its dreamlike, unstable, whole-tone-adjacent character. It rarely sits still — it is a passing chord, a bridge between two stable harmonies, and a favourite of composers who want the ground to shift. On the neck the same shape repeats every four frets. Listen for the raised fifth straining upward and the sense that the chord could resolve in three different directions.