Learn Western Music Theory, Interactively.
Explore notes, scales, intervals, chords, rhythm and music notation through interactive lessons and playable exercises. Build your musical foundation, hear the concepts in action, and practice as you go.
Lessons · Part 1
Pitch
Everything starts with pitch - how notes are named, written, and read. These four lessons give you the vocabulary for all the music that follows.
Notes
Learn the seven natural notes, find Middle C, and hear how octaves and half steps work - on a piano you can play.
The Staff
Learn the five lines and four spaces, read notes upward step by step, and meet ledger lines - with a name-that-note quiz.
Clefs
Treble and bass clefs, the grand staff, and Middle C as the hinge between them - then a clef-switching quiz.
Accidentals
Sharps, flats, naturals, and enharmonics - name every black key, then find them all with labels hidden.
Lessons · Part 2
Structure
Once you can name and read notes, you can start combining them. Intervals, chords, scales, and keys are the building blocks of every song you love.
Intervals
Count the distance between notes, hear consonance vs. dissonance, and train your ear to name intervals blind.
Chords
Build triads from root, third, and fifth, hear the four-chords progression, and tell major from minor by ear.
Scales
The W-W-H pattern that builds every major scale, its minor cousin - then build C and G major yourself, key by key.
Keys
Key signatures and a tappable circle of fifths that plays every tonic chord - plus a final exam quiz.
Practice
Exercises
Interactive trainers for notes, key signatures, intervals, scales, and chords - on the staff, the piano keyboard, the guitar fretboard, and by ear.
Read the staff - Staff Identification
Name what is written
Write the staff - Staff Construction
Place it yourself
Piano keyboard - Keyboard Identification
Find it on the keys
Keyboard Note Identification
Identify the highlighted piano key.Keyboard Reverse Identification
Press the piano key matching the note name.Keyboard Interval Identification
Identify the interval between the highlighted keys.Keyboard Scale Identification
Identify the scale shown on the highlighted keys.Keyboard Chord Identification
Identify the chord shown on the highlighted keys.
Guitar fretboard - Fretboard Identification
Find it on the frets
Fretboard Note Identification
Identify the note at the marked fretboard position.Fretboard Interval Identification
Identify the interval between the marked positions.Fretboard Scale Identification
Identify the scale of the marked positions.Fretboard Chord Identification
Identify the chord of the marked positions.
By ear - Ear Training
Listen and name it
Music math - Music Math
Count the beats
Play
Games
Same notes, more fun - slice the fruit or whack the mole to name what you see on the staff, the keys, and the fretboard.
Whack-a-Note
A note pops up on the staff - whack the mole holding its name before the whole crew ducks back down!
Note Ninja
Fruit falls from the sky with a note name on it - slice it by playing that note on the piano before it splats!
Guitar Ninja
Slice each fruit by playing its note on the guitar - tap the fretboard, or turn on the mic and play for real.
Flappy Bird - Voice Edition
Sing "Aaa" and the bird takes off - hold the note to climb, go quiet to glide. Mind the pipes!
Clap Cat
Listen to the beat, then tap it back in rhythm to jump every obstacle on a 1000 m run.
Vocal Run
Sing high to leap, sing low to slide - keep the rhythm alive through a neon city gig.
Carnatic Music
Swaras, raga, and tala explained interactively - plus playable sarali and janta varisai and the repertoire path from varnams to krithis.
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