Observed, never guessed
Hear more than you own.
Mastermind is the shared mind of the world's DJs. It pools what they actually played — set after set, in front of real rooms — so you hear the records you'd never have found alone.
No single crate is big enough. Thousands of them, laid end to end, are.
Built from sets played to real rooms.
Free on the web · No card required
The desktop app is a separate, invite-only beta — request access or redeem a code.
Desktop app · closed beta
The co-play graph
What DJs played next — not what a model reckons goes together.
Every set we take in is a sequence somebody committed to with a floor in front of them. Line enough of those up and a track's neighbours show themselves: the records it keeps landing beside, across DJs who have never met. We call that co-play — two tracks played close together in the same set.
That line is the whole idea. It is never our opinion of your taste — it is a count of other people's nights. Open it and you get the sets that say so: who played it, where, and how far into the night. Evidence you can go and check, not a verdict handed down.
From hearing about a record to owning it.
Four steps, and the app is built around them rather than around a shop.
- 01
Observation
A set is ingested with its running order intact — every track, in the order it was played to a room.
- 02
Awareness
Those records land in your library as aware: you know they exist and where they were played. You don't have to own a thing for that to be worth something.
- 03
Love
Heart the ones that stop you. That is your shortlist, and it is yours — kept, not scored, and gone the moment you unheart it.
- 04
Ownership
Then buy it. Bandcamp first, where the artist keeps most of the money, then Beatport — one link from every track, and no reason to hunt for it.
Free on the web
Get your own crate straight.
None of that is much use if you can't find anything in your own crate, so the tidying-up is free and stays free.
- BPM and key worked out from the audio, not copied from whatever the tags happened to say.
- Artwork, genres and labels filled in, so a crate you built over ten years reads like one library.
- Bring your rekordbox XML or Traktor NML playlists in as lists, and push one back out to Spotify, Tidal or a plain CSV.
The desktop app is in closed beta.
It works on the files already on your drive — analysis, colour waveforms you can read at 2am, and cue points, without shipping your library into somebody else's app first. Export lands correctly in rekordbox, Serato and Traktor, or straight onto a USB stick, cues and grids intact, with nothing to re-analyse on the night. We are letting people in a handful at a time so we can answer everyone properly. If you'd rather just ask, email hello@mastermindmusic.net.
Built by DJs, for DJs — and to send money back to the artists
For DJs who take their crate seriously. Every decision here comes from people who play out; we built the tools we wanted behind the decks, not the ones that demo well.
And we point you to where your money actually reaches the people who made the record. Buy on Bandcamp or Beatport rather than only streaming it — one link from every track, no hoops.
Ready to hear past your own library?
Start free on the web. Bring your library, or just come and dig.