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Every score, every ensemble.

Upload a score as MusicXML, MIDI or ABC, or a scan as PDF. ArrangementLabs arranges it for the ensemble you choose. You get the score, MIDI and PDF.

02 — METHOD

How an arrangement is made.

ArrangementLabs works on the piece you upload. You choose an ensemble and one of two paths. Transcription carries the notes of the source over to the new instruments, within their range and idiom. Creative arrangement builds a new texture on the original material, following your description. You open the result in the editor and change any note in it.

Original · solo piano
RAMEAU · LES CYCLOPES PIÈCES DE CLAVECIN · 16 BARS
ARRANGEMENT 87 s
Arrangement · string quartet
VIOLIN I & II · VIOLA · CELLO 87 s · MusicXML + MIDI
~90s
arrangement time

from upload to finished parts

21
ensembles to choose from

strings · piano · accordion · voice · solo instruments

0
subscriptions

free beta

3
output formats

MusicXML · MIDI · PDF

03 — EXAMPLES

Three arrangements
to listen to and edit.

All three were made by the ArrangementLabs model. Each one opens in the browser, where you can listen to it, compare it with the original and edit it, without creating an account.

№ 01

Joseph Kosma — Autumn Leaves piano → jazz trio

№ 02

Domenico Scarlatti — Keyboard Sonata in G minor, K. 4 piano → string quartet

№ 03

Johann Sebastian Bach — Prelude No. 12 in F minor, BWV 857 piano → string quartet

04 — EDITOR

A notation editor with nothing to install

The finished arrangement opens in a notation editor in your browser. You add, move and delete notes, hear every change and download the file, with nothing to install. The editor also works without an account, on a blank score or on a MusicXML file of your own.

Try the editor More about the editor →

No account needed. You start from a blank score or from your own MusicXML file.

  • Note input

    Enter notes from the computer keyboard, the on-screen keyboard or a MIDI instrument. The editor handles note values, dots, accidentals, rests, ties and tuplets.

  • The original beside it

    The source score opens in a panel alongside. You copy bars from it instead of writing them out again.

  • Playback

    You hear every change straight away, with no export to a DAW.

  • Export

    You download MusicXML, MIDI and PDF and open them in Dorico, Sibelius, MuseScore or a DAW. Engraving and page layout stay with your notation program.

An excerpt of example 02, open in the editor. Open the editor →
05 — REVIEWS

What musicians say.

I.
Automatic conversion of a score to any instrumentation — keeping it musically correct and ready to perform immediately — is a breakthrough for anyone who works with live music.
Szymon J. bandleader, “Boruta” Song & Dance Ensemble, Zgierz
II.
For ensembles like ours, it means less time spent on arranging and faster delivery of our programme plans.
Jakub S. music director and arranger, Łódź Retro Orchestra
III.
The tool doesn't replace the creator — it supports their creativity, letting them develop the generated ideas with their own artistic solutions.
Bartłomiej B. accordion teacher, State Music School, Ostrołęka
IV.
The arrangement preserves the harmonic logic and character of the original — not creating a new composition, but a functional performance version.
Konstancja B. & Paweł M. violin–accordion duo
06 — PRICING

You only pay for what you generate.

Instead of a subscription, you buy a pack of bars. Only the bars the model generates are deducted from it.

1000 bars
€1.00
5000 bars
€4.00
10,000 bars
€7.00

There are no charges during the closed beta. Bar packs will follow once it ends.

Full pricing →

07 — FAQ

Frequently asked questions.

Which ensembles can I arrange for?
String quartet, string trio and violin duo; duos for voice, violin, flute or bassoon with piano or accordion; a trio for voice, violin and piano; solo piano and solo accordion. The current list is in the app, where you choose the ensemble.
Can I edit the finished arrangement?
Yes. The arrangement opens in a notation editor in your browser, where you add, move and delete notes and hear every change straight away. You can also describe what should change and have a new version of the chosen bars generated. If you would rather work in your own program, download the MusicXML and open it in MuseScore, Sibelius, Dorico or Finale.
How much say do I have over the result?
You have the final say on everything. The model prepares a proposal that keeps the material and character of the original, and you can overturn any choice it made. Change single notes in the editor, generate another version of the bars you pick, or describe what should sound different.
Which files can I upload?
MusicXML, MXL, MIDI and ABC, up to 10 MB. We also accept PDF scores. The scan is read automatically and the result is shown next to it for you to check before the arrangement starts. Audio files are not accepted.
Is the beta free?
Yes. Every account gets 1000 bars, usually enough for a dozen or so arrangements. When you have used them, write to us and you will get more at no charge. After the beta, bar packs will be paid for, with no subscription. Prices are in the Pricing section.
Can I try the editor without an account?
Yes. The editor does not ask you to log in. You choose an ensemble and write on a blank score, or open your own MusicXML file. The score stays in your browser and you download the finished one as MusicXML. Entering notes needs a mouse and keyboard; on a phone you can read a score, listen to it and download it. An account is only needed to arrange for a different ensemble, which is available by invitation during the beta. More on the editor page.

Invitations to the beta go out a few at a time. Leave your email address, and we will reply once we have read your request.