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Soundb Learn · Music Theory

Chords and Triads: Built, Not Memorised

Four triad qualities, because there are only four ways to stack two thirds. How the chords of a key fall out of the scale automatically, how sevenths and extensions continue the same stack, and why a distorted guitar drops the third.

Topic
Music Theory
Level
Intermediate
Format
Lesson
Time
14 min

A chord is three or more notes sounding together. A triad is a particular kind of chord — a root, a third above it, and a fifth above that — and it is the unit almost all Western harmony is assembled from. The distinction matters: any three notes make a chord, and only that specific structure is a triad.

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