MUSIC THEORY, MADE VISIBLE

Make sense of
the music you love.

Scales, notes and chords can feel like a puzzle. We turn them into clear pictures and real sounds you can see, hear, and understand.

♫ Interactive & free. No prior experience needed.
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sound
made simple
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LESSONS THAT CLICK VISUAL BY DESIGN FREE TO EXPLORE
YOUR FIRST EXPERIMENT

Build a scale. Hear the shape.

Pick a starting root note and a recipe.
Tap keys individually or play the whole scale.

THE B NATURAL MINOR SCALE thoughtful and reflective
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THE RECIPE STEPS W · H · W · W · H · W · W W = Whole step (2 semitones)  ·  H = Half step (1 semitone)
2-OCTAVE PIANO KEYBOARD Tap any key to hear note · Watch the scale ascend
In this scale Starting root Other note
CHORDS IN THIS SCALE

Find the chord shapes.

Each shape stacks every other note in the scale. Tap any card to hear how it sounds.

3 notes · tap to play

Choose a chord shape to hear it.

FOUNDATION LESSONS

Small lessons. Big aha.

Explore all guides ↗
EXPAND YOUR PRACTICE

What's next? Explore training tools.

Take your skills beyond the scale explorer. Master key relationships,
train your internal pulse, and test your musical ear with dedicated tools.

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Music theory is just a way of noticing what your ears already love.

Next recommended: intervals →