Triads: Introduction
Triads are composed of three notes stacked in thirds. A major triad is formed by stacking a major third on top of a minor third, while a minor triad is formed by stacking a minor third on top of a major third. A diminished triad consists of two stacked minor thirds, and an augmented triad consists of two stacked major thirds.
The next sections will show you how to practice the triads on your instrument. After that, we will examine the harmonic contexts in which these triads can be applied, and explore their usage in improvisation.