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Cover of Building a Chord
Reference Chart

Building a Chord

How triads are built by stacking thirds, the four triad qualities and their sound, and a triad on every degree of the major and minor scale.

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What's inside

  • The four triad qualities — major, minor, diminished, augmented — built on a note, with their interval recipe and sound
  • A semitone-counting table for each quality, with symbols and an example built on C
  • A triad on every degree of the C major scale, with Roman numerals and functional names
  • How to name a chord you've found, and the triads that occur in a minor key
chordstriadsharmonymajor-minor
Prefer it interactive? The Chord Builder covers the same ground on screen — open the tool →

Looking for step-by-step lessons instead? Head to Music Theory. Want composing ideas? Try Composing.