Kluvi · Music

Hear the theory behind the sound

Scales, chords, rhythm and the stories behind the great composers. Kluvi connects what you hear to how it works, one lesson at a time.

What you can master

  1. Music theory

    Scales, keys and intervals — the grammar behind every song.

    Semitones in an octave
    12
  2. Notation & rhythm

    Reading scores fluently, from time signatures to tuplets.

    Beats in a 3/4 bar
    3
  3. Harmony & chords

    Why chords pull toward each other and how progressions work.

    C – E – G is the chord…
    C major
  4. Music history

    Baroque to hip-hop: the eras and what changed between them.

    Composed the 9th Symphony
    Beethoven
  5. Ear training

    Recognize intervals, chords and rhythms by sound alone.

    The interval C → G
    a perfect fifth
  6. Musical forms

    Sonata, rondo, verse-chorus — the architectures of music.

    Verse–chorus–verse is a…
    song form

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AI Tutor

What makes a chord major or minor?

The middle note. Both chords stack a fifth, but the third in between decides the mood: four semitones up from the root is major (bright), three semitones is minor (melancholy). C–E–G is major, C–E♭–G is minor. One semitone, a whole different feeling.

Why it works

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