Powered by Kii
Find tracks for a brief, check missing details and organise your catalogue. Ask Kii in your own words.
And no, we never use your music or your data to train AI. Not ours, not anyone else's.

Drop in a messy folder of bounces and Locker sorts them into tracks and versions. Named, tagged and credited.
Ask it 'what have I got around 120 in a minor key' or 'have I written this line before'. You get a straight answer.
It learns who you work with, fills in missing credits and splits, and catches duplicates before they pile up.
Voice notes, lyrics and concepts live beside your tracks. Record a take on the exact section you are writing, and find it again in seconds.
What Kii suggests, you approve. It never changes your catalogue behind your back. And if it can't do something, it says so.

Locker is where your music stays organised. Tracks, versions, lyrics, files, notes, and collaborators stay connected in one searchable workspace.

Send a mix, get notes back pinned to the second, and send the next version to the same place. Comments, approvals and context stay with the track instead of disappearing across email threads, messages or download links.

Upload files or connect a supported drive. Review the tracks and versions Locker finds, then add them to your catalogue. No need to sort every folder before you start.
From the first idea to final delivery, Locker supports writing, producing, organising, and releasing music in one connected system.
Capture ideas, versions, lyrics, and demos in one evolving workspace.
Manage versions, notes, deliveries, and client feedback effortlessly.
Create searchable catalogues and track your roster with clarity.
Keep song assets, splits, metadata, and rights notes organised.
Streamline releases, sessions, and communication across your roster.
"Love it! What a game-changing tool. Everything's easier to find, quicker to manage, finally everything lives in one place."
Phil Cook
Songwriter and Producer·Lewis Capaldi, Ellie Goulding, Liam Payne
Now on Mac and iPhone
Locker, native on your Mac. It watches your session folders, catches the mixes you download, and lets you drag tracks straight in and out of Finder. On your iPhone, your whole Locker comes with you. All in sync with the web.
Bring your tracks, versions, and collaborators into one place.
Get Started FreeYour music, together