From your head
to the stand.
Professional music notation that follows your ideas and stays out of your way. Fast, capable of complex tasks, and ready for whatever you write.
- One modeWrite, shape the page and listen in the same window
- No log-inActivate once, then no account
- Two computersA desktop and a laptop on one licence
- OfflineWrite anywhere, with nothing to wait for
- FastBuilt in Rust, it stays quick even with large orchestral scores
See it at work.
Writing
Write in one mode.
Notes, chords and rests from the keyboard, with the palette beside the page. You write, shape the page and listen in the same window.
Orchestra
Large scores, read at a glance.
Twenty-seven staves and a new metre in almost every bar, with the time signatures set large across each group of instruments.
Piano
Virtuoso writing, engraved.
Intervals beamed from one staff into the other, five against four, tuplets inside tuplets and septuplets in contrary motion, every note with its own accidental. Arietto sets it from the notes alone.
Brass band
Every part in the key its player reads.
A concert march from soprano cornet to B♭ tuba, every part transposed, grouped and bracketed the way bands expect.
Jazz
Charts in a copyist’s hand.
A quintet chart in the handwritten style: chord symbols with their tensions, a walking bass, kicks lined up with the horns, a segno and a coda.
Parts
Parts, ready when the score is.
Every player's part comes from the score you are writing, laid out as pages of its own.
The Performance Engine
Played, not replayed.
New in Arietto: for strings, winds and brass, the Performance Engine doesn’t replay recordings, it models the performance itself. Built by spectral modelling of real players, partial by partial, it shapes every note as you wrote it: the bow change, the swell inside a held note, the slide between two pitches, things a fixed recording cannot do. Sampled instruments, a mixer and a hall come with it.
Mallets
The instrument, beside the score.
A four-mallet vibraphone piece with its pedal lines, and the instrument preview below it: mallet bars, keyboard or fretboard, to check a voicing, a reach or a sticking against the instrument itself.
Instruments
Every instrument, the way its players read it.
Tab linked to the notation in both directions, string numbers and harmonics, and the fretboard as it plays.
Percussion
The setup, drawn from your kit.
A percussion solo with its station drawn from above and every instrument listed, and the notes for the performer set in columns.
Voices
Written for singers.
Lyrics set syllable by syllable, with melismas, elisions and verses handled for you, and divisi on one staff or two.
Contemporary music
Graphic notation, built in.
More than two hundred and seventy graphic signs, from lines and textures to fields and clusters, plus your own imported signs and lines drawn by hand, all placed straight onto the page beside staff and time-space notation. They stay with the music when the layout changes.
Extended techniques
Inside the piano, on the page.
Objects on the strings, a sweep drawn across the page and timed in seconds, and every instruction set where it happens.
The edition
From the cover to the last bar.
Engraved for print and publication: title page, imprint and contents built from the score and set in its typography, a cover classic, framed, as a panel or with a banner, and every detail of the page, from fonts and margins to your house style, set the way your edition needs it.
The program
Everything in one window.
Score, parts, sound and every instrument in the same place. There is nothing to switch between, and nothing to set up before you start writing.
- Ask AriettoTell it what you want, typed or spoken: “Add two bars at the end.” It runs on your Mac, nothing leaves it, and it never writes a note for you.
- A MIDI keyboard, if you likePlay notes in from a MIDI keyboard, or type them from the computer keyboard.
- Your own instrumentsLoad Audio Unit instruments beside Arietto’s own sounds.
- Write to pictureOpen a film beside the score, write to it, and export the audio or the finished video.
From sketch to stand
Easy to learn. Years to write in.
- 01 · WriteNotes, chords and rests from the computer keyboard or a MIDI keyboard, in one mode.
- 02 · Shape the pageMove anything you like. It stays where you put it.
- 03 · Hear itWith the Performance Engine, the sampled instruments or your own Audio Unit instruments.
- 04 · Hand out the partsPrint, export PDF, MusicXML, MIDI, audio and video.
How it will be sold
Buy it once, or subscribe.
Version 1.0 is still ahead, so take this as a promise made in public.
A purchase includes Arietto 1 and every update to this version, and it keeps working for good.
A subscription, monthly or yearly, includes every update while it runs, new major versions too.
If a licence check fails or a subscription ends, Arietto still opens, prints, exports and saves everything you wrote.
MusicXML and MIDI in and out, PDF, audio and video out. Your music can always leave with you.
The closed beta
Limited places.
Every application is read by the person who built the program, and you will hear back either way. The testers who help most get a free licence for Arietto 1, and every tester who sends feedback gets a generous discount on it.
Apply for the closed betaQuestions
Everything you need to know.
About Arietto and the closed beta.
What is Arietto?
Professional music notation software, for the Mac now and for Windows from early 2027. Fast and capable of complex scores and engraving: you write, shape the page and listen in the same window, and the parts are ready when the score is. Its engraving engine is its own, built for Arietto from the ground up.
Who is the closed beta for?
Professionals and amateurs alike. The group is put together so that every kind of music gets written: orchestra and band, choir, chamber music, piano, guitar, drums, jazz and teaching.
What do I get for taking part?
Arietto before anyone else, updates as they are built, and a direct line to the person who wrote it. The testers who help most get a free licence for Arietto 1, and every tester who sends feedback gets a generous discount on it.
What do I need?
A Mac with macOS 13 or later. A Windows version is planned for early 2027.
Can I bring my existing scores?
Yes. Arietto reads and writes MusicXML and MIDI, and exports PDF, audio and video.
How will Arietto be sold?
Buy it once or subscribe. A purchase includes Arietto 1 and every update to this version, for good. A subscription includes every update while it runs. Either way, Arietto never locks you out of your music.
Be among the first
to write in Arietto.
Applications for the closed beta on macOS are open now. Places are limited.
Apply for the closed beta