AS Music Theory
AS Music Theory

Music theory, made intuitive

Learn the language of music: concepts, intervals and chords you can see, hear and play.

Explore Concepts Explore Tools

Everything you need to learn

A hands-on way to understand how music works.

The Piano Roll tool with a MIDI guide loaded: the guide's notes shown in purple on the roll and lit on the keyboard, ready to record a take over the top.
Use our Piano Roll tool to practice and record your own performances over MIDI guides.

Concepts

Clear, structured explanations of music theory, from the fundamentals to advanced ideas.

Intervals & Chords

See how notes combine into intervals, scales and chords, with interactive examples.

Play & Listen

Hear every concept on real instruments. Choose your sound and play along.

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F♯G♭
G♯A♭
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C♯D♭
D♯E♭
F♯G♭
G♯A♭
A♯B♭
C♯D♭
D♯E♭
F♯G♭
G♯A♭
A♯B♭
C♯D♭
D♯E♭
F♯G♭
G♯A♭
A♯B♭
C♯D♭
D♯E♭
F♯G♭
G♯A♭
A♯B♭