Musical Harmony


Triads and Inversions

Learn how to build major, minor, diminished, and augmented chords using intervals.

Chords of the Major Scale

Learn how to build triads on every degree of the major scale and how to label chords using Roman numerals.

Seventh Chords

Eight types of seventh chords are covered, including details on how to construct them, what to call them, chord symbols, and more.

Introduction to Chord Progressions

Learn the basics of chord progressions, including several different systems for labeling a progression.


How to Spell Chords

A guide to spelling various kinds of chords. Each chord is shown in a table with the spelling for each root.

Chord Progressions

A reference of common chord progressions in every key.