Harmony Gym

Levels

Beginner

Theory

  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. Find the note

    A note is named on screen, then you find it on your own instrument — the map every player needs.

Chords

  1. The Major Chord

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

  2. 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.

Ear training

  1. Intervals by ear

    Hear two notes and name the distance between them — the skill behind playing by ear.