It did not begin as a player.

It began with a fracture.

Digital music made almost everything reachable. On the way, most of what surrounds a song went missing. A track became a row, a file, a thumbnail, an item in a queue.

That is not how music is lived with. A song belongs to an artist and a record, to a version and a year, to a scene, a compilation, a series — and often to a stretch of someone's life.

So the problem was never playback. It was that listening, organising, repairing, discovering, curating and remembering had been split across separate programs, each of them knowing one part. Musicae exists to put them back together.

Music is not a file.

A file is the carrier. The work is larger.

A track stands in relation to the artist who made it, the release it came out on, the other versions of it you own, the year it first appeared, the songs that sound like it, the cover and the booklet around it — and the age you were when it came out. Musicae keeps those relationships and turns them into something you can use.

Presence, not just access.

Streaming is extraordinarily good at access. It answers one question: what can I play?

A collection asks others. What am I listening to? Where does it belong? What surrounds it? What can I find from here?

Streaming manages access to a catalogue. Musicae takes care of a collection. They answer different questions, and both are allowed to exist.

One arc, under one roof.

Organising, checking, choosing and enjoying are not four chores for four tools. They are one arc of attention. In Musicae the record you are playing is the same record you can open, read, correct, put on a tape or start a radio from — without leaving the room it is in.

Yours, entirely.

Your music stays in your folders — on your Mac, a drive, a NAS. What Musicae learns about it stays on your Mac. There is no account and no subscription, and nothing stops working because a server went away.

When something in your library looks wrong, Musicae says so, and then it waits. A finding is information, not a verdict. Nothing is rewritten behind your back, and nothing that changes your files will ship until everything it changes can be put back.

Discovery starts with what you already have.

A large collection hides more than it shows: the album you forgot, the song you own three times and never noticed, the artist who has been on your compilations for twenty years. Musicae helps you meet your own music again.

When it suggests something, it behaves like a good guide in a record shop rather than a feed. It shows why, it accepts a no, and it never tells you what you like. Suggest, don't decide.

Your own time.

A calendar says 1997. Memory says: you were sixteen. With a birth year you choose to give it, kept on your Mac, Musicae lays a second timeline over your collection — childhood, the teenage years, coming of age. It says when a song came out in your life. It never claims you listened to it back then.

What Musicae is not.

• a replacement for streaming
• a feed built to keep you listening
• a tag editor with a player attached
• an AI demonstration
• a retro costume
• a score for how tidy your library is