songs, splits & co-writes

SongwriterOS

The room where the song gets written.

Made for artists and co-writers. Free while we build it.

Start a song opens in the browser · installs on a phone or a laptop
Late Train
started 16 sept 2026·key D·92 bpm·4/4
verse 1duplicaterec
The last train leaves at ten past two8 I count the windows down to you8 Every window holds a face7 That isn’t yours, but takes your place8

The room

Write in sections. Drag to reorder, duplicate a chorus. Co-writers join by link, with just a name, and see the lyric as it is typed.

The craft

Click any word for rhymes and other ways to say it. The margin counts sung syllables. Spark reads the line you are on.

The split

Who wrote it and how much, agreed while the song is still warm. A registration pack ready for your PRO.

The words

Every word knows its rhymes. The page knows its scheme.

Click a word and its rhymes, near rhymes and other ways to say it arrive in the side panel. show rhymes colours the rhyme scheme of every section, so you can see where a chorus holds and where it drifts.

Hold a rhyme to keep it in Held Words. Nothing you cut is lost: deleted lines wait in the Badlands, and any line can keep alternatives.

+ add a sectionlyric sheetversions
chorusduplicaterec
Leave the light on in the halla I’m coming home, but coming slowb I never had to knock at alla I’ll know the door by how it glowsb

The co-write

Send a link. Write together, live.

Co-writers join with just a name and no account. They see the lyric change as it is typed, leave a note on a line, and record a voice memo where the melody lives.

Everyone who joins lands on the split sheet. share is the only button in the room.

● saved· Jules is in the room
verse 2duplicaterec
The platform empties out by three I keep your ticket in my sleeve The town has turned its lamps down low I walk the road you never drove
I keep your ticket in my sleeve
Jules
This is the whole song. Sing it twice and let the last line carry it.

Spark

Spark reads the line you are on.

Spark reads the line you are on and offers three directions, two sketches each, every one counted to the syllable. Tap a sketch to place it. Undo brings yours back. And you can talk back.

read the song is Spark’s take on the whole piece, talked through, with a verb on every suggestion: take me there, work on it, ask about it.

Late Train
started 16 sept 2026·key D·92 bpm·4/4
verse 1
The last train leaves at ten past two I count the windows down to you Every window holds a face That isn’t yours, but takes your place
chorus
Leave the light on in the hall I’m coming home the long way roundundo I never had to knock at all I’ll know the door by how it glows

Versions

Nothing you wrote is gone.

Every earlier state of the song is kept quietly as you write and diffed against now. A dot marks a line that has since gone. A struck line has since arrived.

Bring back one line, one section, or the whole song. The on any line shows what that line used to say.

versions
today · 9:12
you
now
yesterday · 22:40
you and Jules
+2 −1 lines
15 sept · 18:05
you
first draft
verse 1bring back this section
The last train leaves at ten past two
I wave at every car I seebring back
I count the windows down to you
Every window holds a face
That isn’t yours, but takes your place
● a line that has since gonea line that has since arrivedbring back the whole song

Key, tempo, click

A real click, and the words big at the mic.

Key, tempo and time signature sit under the title. tap the tempo in, or turn on the click: a real metronome, scheduled ahead so it never drifts, bigger on one.

Sing mode puts the words big on a phone at a mic stand. Here the click is turning the page.

Late Train
for Amy·key D·92 bpm tap·4/4·click

92 beats a minute. The dot beats with it, bigger on one. Every second bar, the phone moves to the next line.

The business

The split is agreed in the room, while the song is still warm.

Who wrote it and how much. even split settles it in one tap, and the total reads green when it is whole. The registration pack fills your society’s work registration from it: APRA AMCOS, ASCAP, BMI and the rest.

Your writer profile, with PRO and IPI, follows you into every session. A pitch link is read-only and never shows splits.

split sheet
writerrolesocietyipishare
George Sheppardwords & musicAPRA AMCOS00 · · · · · 4150%
Jules Marrwords & musicASCAP 50%
total 100registration packexport the split

Bring songs in

Your catalogue comes with you.

Paste a whole lyric and it finds its own sections. Drop .txt, .md or .docx files on the shelf and each one becomes a song, with its title.

Also in the room: hold a song to move it, drop it on another to make a folder. Search finds a song by any word in it. Open a song a co-writer touched and see what changed since you were here. A dark room and a light one, and the app follows your device, or your choice. So does this page.

pasted · 8 lines.txt · .md · .docx
Late Train
verse 1
The last train leaves at ten past two I count the windows down to you Every window holds a face That isn’t yours, but takes your place
chorus
Leave the light on in the hall I’m coming home, but coming slow I never had to knock at all I’ll know the door by how it glows

Who made it

Built at the writing table.

Made in Brisbane by George Sheppard, singer of Sheppard. In use in real writing sessions since August 2026.

It is the room he wanted for his own sessions: the lyric, the rhymes, the people and the split, all on one page. The product is the point. If it earns a place at your table, that is the whole idea.

The room is open.

Sign in with an email link. Co-writers you invite never need an account.

Start a song