now live!!

stuck? noteihas a few ideas.

your music writing assistant. bring your idea and notei helps you write it

built in public by a high schooler · watch notei work it out
44
what it is

a notation editor with an assistant that helps

write sheet music in your browser, and notei's assistant helps when you're stuck.

app.notei.co
launch notei
ask notei

ask in words and notei responds on your score

app.notei.co
the short version
write. ask.
hear it.
one editor. one conversation with your assistant about what you're writing.
how it works
01

write

place notes by hand, start from any music file, including PDFs, or even your voice.

02

ask

select a passage and tell notei what you want. it'll always execute.

03

hear it

play the score back with real instrument sounds, one part or the whole arrangement.

first
all your busywork
sorted by notei.
the boring part

yaawwnn.
the boring part
done for you.

unless you're a pro, placing every note by hand takes forever. instead: select, prompt, and notei executes in a blink.

By hand
0:00

place every note, one click at a time…

With notei
0:00

select, prompt, done.

sketch. ask. hear. share.
what notei does

everything about composition,
handled by notei.

whatever it is, notei it.

voice a chord

one click and everything is phrased

pick a note, ask for a voicing, and notei writes the other parts in around it.

see it →
hum → notation

hum it and notei writes it down

sing like how you did in the shower and watch your idea turn into real, editable notation.

see it →
when stuck

never dwell over an empty bar

a couple of ideas are always ready the moment you blank, built off what you've already written.

see it →
clean exports

hand off a tidy score

one score, every format your band or DAW expects.

see it →
bring anything

notei starts from where you start

import audio, MIDI, MusicXML, or a rough PDF scan and notei turns it into an editable score.

see it →

the full breakdown lives in your notebook →

your notebookthis is notei. everything in one view.
harmonypick one note. notei voices a harmony.
hum → notationhum a rough idea. notei polishes your (good) singing.
ideationstuck on an idea? notei keeps you going.
send it offhand off a clean score, ready to share however you want.
all in onefrom an idea to a symphony with notei.
where it's at

small but mighty. taking on musescore.

20
people on the email list already
5
features shipped so far
20+
early users trying it before launch
early testers

prelude users and their words

i wrote my lead sheet on the bus. it feels impossible.

jazz pianist

it gives me an insane productivity boost.

jazz arranger

it helps me ideate when i'm stuck. it pulls me back in when i feel done.

student arranger
launch updates

be the first to write faster.

follow notei's email list to gain early access to features!

access early features — see the build log and try them out!
get notified — view promotions, launches, and more.
a say in what ships next — reply and it actually reaches me.
follow along

follow the quest to take on musescore

building notei in public. follow along and i'll try not to be boring.

@braaiincmy founder profile
build notes
shipping hum → notation this week.
follow on X
Instagramdemo clips, sometimes other things
statusnot posting yet
coming soon
YouTubelonger form content, eventually
statusnot posting yet
coming soon
questions

notei's answers

notei is a browser-based music notation editor with a music-theory assistant built in. you write real sheet music on a staff, hear it back with real instrument sounds, and ask notei about the score in plain language. it runs in any modern browser, with nothing to install.

yes. the full editor is free forever, including writing, real-instrument playback, and MusicXML, MIDI and WAV export. paid tiers add more assistant credits, watermark-free PDF and deeper arranging: notei+ is $9 a month and full score is $18 a month, both half price for students. no card needed to start.

musescore lets you write music, notei helps you write it. both are free notation editors, but notei runs in the browser with no install, and its assistant sits inside the score, so you can ask why a bar sounds wrong, harmonise a line, or hum a melody and have it written down. either way, you keep and edit every note.

only if you ask it to. notei can generate a line from scratch, harmonise it, or arrange it for other instruments, but everything it produces lands on the staff as ordinary editable notes rather than a finished render you can't touch. it is assistive, not automatic, and you stay the author of every note.

yes. notei runs entirely in the browser, so it works on a chromebook, a school laptop, a mac, a windows pc, or a tablet. there is nothing to install, nothing to keep updated, and no licence to move between machines.

MusicXML, MIDI, WAV, and PDF. MusicXML, MIDI and WAV export are free on every tier, and clean watermark-free PDF is on the paid tiers. because musescore, sibelius, finale and dorico all open MusicXML, notei fits alongside whatever your school or ensemble already uses.

students writing for band, orchestra, or a composition class, hobbyists who can hear a tune but can't write it down yet, and teachers who need notation that runs on school hardware. no theory degree required, because notei explains what it is doing as it does it.

yes, a free account, so your scores sync to every device you sign in on. no card needed.

your scores save to your notei account so they follow you between devices. see the privacy page for the full detail.