Formatted along similar lines, this new volume presents individual chapters featuring the “other” three – namely, Minor, Augmented & Diminished Triads.
As mentioned in the previous post, the triad is the building block of Western harmony, as it characteristically exerts a strong harmonic “pull”, regardless of its function.
Triads can also be part of a larger, more complex (7th, 9th, 11th, or 13th) chord as an extension or upper structure.