Gig-ready USB
in seconds.

It turns a folder of tracks into a USB stick your Denon gear is ready to play — analyzed, ordered and plugged in, instead of an evening of prep.

You point Alpha at your music. It reads tempo, key and energy straight out of the audio, on your own machine. You pick the energy arc the night should follow, and Alpha orders the set so neighboring tracks actually mix. Then it writes the playlist onto your drive and builds the Engine OS database your player expects — copying only what isn't on the stick yet.

What it isn't: a library manager. Alpha doesn't want to own your collection or replace the tool you catalog in. It covers the stretch between “I've got these tracks” and “the stick is ready for tonight”.

We built and tested Alpha specifically for the Denon DJ Prime Go. That's the machine every release is checked against.

Other hardware running Engine DJ / Engine OS reads the exact same drive format, so a stick Alpha writes works there too — among them the Prime 2, Prime 4, SC5000 and SC5000M, SC6000 and SC6000M, and Numark's Engine OS gear such as the Mixstream Pro.

Pioneer hardware is not supported: rekordbox keeps its library in an encrypted database that we deliberately leave alone.

Your first 10 tracks are free, so the cheapest way to find out is to plug in your drive and try it.

We keep adding hardware and software compatibility — check your device.

The whole app — not a stripped-down demo. Analyse your music, build a sequenced set, write it to your Engine drive, plug it into your gear. The complete flow, end to end.

It's free for your first 10 tracks. That's one real set, on your own music, on your own hardware — enough to know whether Alpha is worth anything to you before you spend a cent. No card, no trial countdown.

Start free: your first 10 tracks are analyzed and exported at no cost, so you can run the full thing once before deciding anything.

Happy with it? Alpha is €30 incl. VAT, once. No subscription, no yearly renewal — you buy it and keep it, and updates are included.

One licence covers one person on one device, and you can move it to a new machine yourself. Full details on the pricing page.

Alpha takes a backup of the Engine database before every single write, keeps the last ten of them on the drive, and lets you roll back to any of them from inside the app.

So the state your stick was in five minutes ago is always one click away — you don't have to remember to back up before you touch anything.

No. Alpha checks what's already on the drive and re-links those files into the playlist instead of writing a second copy. Only genuinely new tracks get copied across.

That holds either way you work: start a brand-new playlist, or point Alpha at one that's already on the stick and append to it. When you extend, tracks that are already in that playlist are skipped and the new ones land at the end — the rest of your drive stays untouched.

So the same track can sit in three playlists without eating three times the space — and without you hunting down duplicates afterwards.

Alpha isn't a library manager, so it never asks you to load your whole collection into it. You point it at the folder you want to play from, and it builds one gig-ready USB out of that.

Your archive stays exactly where it is, across as many drives as you like. Alpha only ever works through the folder you picked, so you wait for the tracks going into this set — not for your whole collection.

Not at all — that's exactly the setup Alpha is built for. Plenty of DJs already curate in Lexicon or something similar and only reach for Engine DJ to get tracks onto the controller.

Alpha takes over that last step. It reads the audio files on disk, so it doesn't care which tool you catalog them in, and it never wants to own your library.

Tempo, musical key in Camelot notation, and an energy value for every track — all computed by Alpha itself from your audio, not read out of someone else's tags.

Energy isn't a number you have to look at, either: it's what the arc in step 02 is built from.

Alpha takes the key, tempo and energy of every track and orders the set so that neighboring tracks mix cleanly and the whole thing follows the energy arc you picked — calm intro, build, peak, soft landing, or whatever shape you draw.

No. Alpha writes a normal Engine OS drive — your hardware reads it the way it reads any other stick, and Engine DJ still opens it. Alpha replaces the tedious prep, not your gear or your software.

No. Stem separation stays with Engine DJ and your player. Alpha's job ends when your set is analyzed, sequenced and written to the drive.

Your audio never does. Tempo, key and energy are analyzed locally on your own machine, and no audio file is ever uploaded.

Arranging the set happens on our servers, so the app sends the metadata of the tracks in your set — title, artist, tempo, key, energy, length — and gets the running order back. Details are on the privacy page.

No. Analysis only reads them — no re-encoding, no rewriting of tags, no moving files around in your library.

No — and it never will. Streaming audio is DRM-protected, and working around that is off the table for us. Alpha works with the audio files you already own.

macOS today. Windows and Linux are planned.