Play the music you love,
at the level you're at.
Upload a score or write one from a prompt. Play it back in your browser, simplify or edit it in plain English, change the key in a click, and download it any way you need. Same song, same feel, actually playable.
Before & After
Same piece. Any level.
Toggle between original and adapted. The melody stays — LalaScript knows which notes carry it. Chord complexity, hand span, and rhythm are reduced without losing what makes the piece worth playing.
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Try your own score at studio.lalascript.com →
How It Works
From score to playable, without leaving the page.
No music theory knowledge required.
Bring in your music
Upload a MuseScore or MusicXML file, or just describe a piece in words and let LalaScript write one for you.
Hear it and shape it
Play it back in the browser with the notes highlighted as it goes. Ask for changes in plain English, or drop it into a new key. Free and instant, as many times as you like.
Take it anywhere
Download as MusicXML, MuseScore, PDF, or an MP3. Everything's saved to your library to pick up later.
In the Studio
Everything happens in one place.
No more exporting a file just to hear it or tweak it. Play, edit, and arrange right where you are.
Hear it instantly
Press play and the score plays back in your browser, notes lighting up as it goes. No desktop software needed.
Edit in plain English
"Simpler left hand." "No double notes." "Put the melody on top." Describe a change and watch it happen — free and instant.
Change key in a click
Move any piece up or down to fit your range or your instrument. Pure music theory, reliable every time.
Create from scratch
No score to start from? Describe what you want — "8-bar blues solo in E minor" — and get a fresh piece to play and refine.
Download any format
MusicXML, MuseScore, PDF, or MP3. Opens in MuseScore, Sibelius, or Finale — or just print it.
Your own library
Everything you make is saved. Reopen, rename, and keep refining whenever you come back.
Who It's For
For musicians at every stage.
Students
Found a song you love but it's too hard? Get a version you can actually learn from — without losing what makes it the song.
Teachers
Stop spending hours hand-editing arrangements. Generate a version tailored to each student's level in seconds.
Adult learners
Getting back into music after years away? Play pieces that fit where you are now — and grow from there.
Singers
Need a song in your range? Drop any chart up or down to the right key in one click, then download the accompaniment.
Stay in the loop.
New features, supported formats, and tips for getting the most out of LalaScript — straight to your inbox. No spam.
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Under the Hood
Built on music theory, not guesswork.
Most tools treat notation as pixels. LalaScript reads it as structured musical knowledge — melody, harmony, voice roles, difficulty — then reasons about it the way a trained arranger would.
Semantic analysis
Every note is tagged with its musical role — melody, inner voice, bass — before any transformation happens.
Melody preservation
The melody is identified and protected. Simplification only removes what doesn't carry the music forward.
Constraint-based output
Hand span, chord density, and rhythmic complexity are treated as hard constraints — not suggestions.
Deterministic engine
No hallucinations. The same score always produces the same output — consistent, auditable, repeatable.