Harmony Gym

Harmony Gym

Learn harmony by playing

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  1. Notes and Semitones

    The 12 notes of Western music, the semitone steps that separate them, and how to find any note on the keyboard.

  2. Intervals: the Building Blocks

    What an interval is, the semitone distances that give each one its name, and why the third is the interval that matters most for chords.

  3. The Major Chord

    What a major triad is, how to build one from any root note, and how to hear its bright, stable sound.

  4. The Minor Chord

    How the minor triad is built, why it sounds darker than the major chord, and the one-semitone change that makes all the difference.

  5. Diminished and Augmented Chords

    How diminished and augmented triads are built from stacked thirds, why both sound unstable, and where they show up in real music.

  6. Chord Inversions

    What a chord inversion is, how to recognize the same triad with a different note in the bass, and why musicians use inversions at all.