Tools
Fourteen free interactive tools for composing, practising and training your ear — the Circle of Fifths, a metronome, drum patterns, chord and scale explorers, ear-trainers and more. Every one runs right in the browser, and keeps working offline once you've opened it.
New to music theory itself? The graded lessons live over in Music Theory.
The Circle of Fifths
One diagram that shows every key, its signature and its relative minor — and the single most useful map a young composer can carry. Click to explore, or switch on quiz mode.
Open the tool → Interactive toolThe Scale Explorer
Pick a note and a scale type, then see it light up on the keyboard and the stave, hear it played, and learn the pattern of steps behind it. Major, minor, pentatonic and modes.
Open the tool → Interactive toolThe Key & Chord Wheel
Choose a key and meet its seven chords — I, ii, iii, IV, V, vi, vii° — each with its job in the music. Hear them, and play the progressions that power real songs.
Open the tool → Interactive toolThe Interval Trainer
The gap between two notes — see it, hear it, and name it. Explore every interval with a familiar-tune hint, then test your ear in quiz mode.
Open the tool → Interactive toolThe Chord Builder
Stack notes into chords and hear them come alive — major, minor, diminished, augmented and sevenths — on the keyboard and the stave, with the recipe for each.
Open the tool → Interactive toolThe Rhythm Bar Builder
Complete a half-written bar so it adds up to the time signature — and so the strong and weak beats fall in the right place. Or build a rhythm of your own from scratch.
Open the tool → Interactive toolThe Metronome
Keep a steady beat while you play or compose. Set any tempo and time signature, hear the downbeat accented, and tap in a tempo by ear.
Open the tool → Interactive toolDrum Patterns
A drummer in your pocket. Pick a groove — basic rock, a waltz, a swing shuffle — set the tempo, and play or compose along. Every sound is made in the browser, so it works offline.
Open the tool → Interactive toolThe Drone
Pick any note and hold a steady, pure tone to sing, play or compose against — a fixed pitch to keep you in tune, like a bagpipe's drone or a tanpura.
Open the tool → Interactive toolInstrument Ranges
Writing for a flute, a trumpet, a cello? See exactly which notes each orchestral and band instrument can play, its comfortable middle, the clef it reads — and whether it sounds different from what you write.
Open the tool → Interactive toolPrompt Generator
Stuck for an idea? Roll a key, a metre and a mood — enough to start writing. Switch to Advanced for a form and a challenge too. Lock what you like, re-roll the rest, and save it to your journal.
Open the tool → Interactive toolCadence Ear-Trainer
Listen to a cadence — the two chords that end a musical phrase — and name which kind it is. Instant feedback, a running score, and a practice mode to learn the sound of each.
Open the tool → Interactive toolRhythm Echo
A Simon-says memory game on the drum kit's own sounds. Listen to the pattern, tap it back, and see how long a sequence you can hold onto as it grows round by round.
Open the tool → Interactive toolThe Key Slider
Slide through all 15 key signatures, 7 flats to 7 sharps, and see the major scale and its relative minor side by side — solfège, note names and the chord built on every degree.
Open the tool →Want the theory behind these tools, step by step? Head to Music Theory. For printable manuscript paper and reference charts, see Printables.