The empty playlist
Four thousand tracks. Two hours to fill.
You already know what the night needs. Saying it takes ten seconds. Digging for it takes the evening.
"90 minutes, warm up then peak time tech house."
Type that, or just pick a vibe and a length. You start from a set that already runs to time — then you do the part only you can do: swap, reorder, make it yours.
The transition
You heard the clash a bar before the room did.
It was the right track. It was just in the wrong key, and you found out live.
Once your library has been listened to — key, tempo and energy, every track — that stops being a guess. Whatever is playing, you can see what follows it well, and how well, before you commit to it.
The shape of the night
The room should peak at midnight. Not at quarter past ten.
A good set has a shape, and you can usually only see it afterwards.
Draw it first instead: warm up, lift, hold, wind down. The set is filled to that curve, and the energy line across the top shows where it sags while there is still time to fix it.
The rut
The same forty records keep finding their way in.
You bought the other three thousand nine hundred and sixty for a reason.
The tracks you lean on get held back. The ones you have neglected get put in front of you — the ones that fit, not just the ones that are old. And the same artist stops turning up twice in ten minutes.
New music
Bought this morning on the laptop. Wanted in tonight's set.
Open a web address on the computer and drag the files in. They land on the phone, in the folder you chose. No cable. No cloud drive in the middle.
The handover
The set is on your phone. The decks are plugged into something else.
A playlist that points at files your DJ software cannot find is just a list of names.
Export the set and each track is written with where it lives on your computer, not on your phone. It opens as the set you built, with your cues where you left them.
Your taste
What you think you play, and what you actually reach for.
They are rarely the same. The keys you keep landing on, the energy you settle at, the kind of track you skip without noticing.
Turn learning on and you get to see it — along with a mix of your own music that rebuilds itself each day around it. It keeps the feel of what you play, never a list of your tracks.
Your records
The catalogue has the release. It doesn't have your edit.
The promo that never came out. The bootleg from a friend. The version you cut down yourself because the intro ran too long.
Those are the tracks that make a set yours, and no lookup service has heard them. ZOOT doesn't look anything up. It listens to the files that are actually on your phone — whatever they are, wherever they came from.
- Your music stays yoursNothing is uploaded. Nothing leaves the phone.
- Your files stay untouchedEdits live in ZOOT, never in the audio file.
- No accountNothing to sign up for, nothing to log in to.
- No subscriptionFree to start. One payment if you want the rest.
Questions
Is ZOOT free?
Free to start, with no time limit. Your whole library is analysed, every track shows what mixes with it, and Quick Vibe builds a 30-minute set once with each of its six vibes. You can open every builder to see what it does. One payment unlocks the rest: every vibe as often as you like, sets of any length, all twelve builders, export, WiFi Transfer, stats and insights. There is no subscription.
Does it work with my own music?
That is all it works with. ZOOT analyses the audio files on your phone and works out the key, tempo and energy of each one. Nothing is uploaded and nothing is looked up in a catalogue.
Do I need to understand keys?
No. Each track shows how well it follows the one that is playing, as a score with the key move next to it. Most people pick up the theory from reading those.
Can I play the set in my DJ software?
Yes. Export the set and ZOOT writes each track with its location on your computer, so your DJ software can open the playlist and find every file.
How long does the first analysis take?
It runs on the phone itself. On a recent phone, a library of about 900 tracks takes around 20 minutes. Start it and leave it. You only do it once.
Do I need an account or a connection?
No account. Analysis, building and playback all happen on the phone. A few optional extras, such as fetching artwork, use a connection.
Is there an iPhone version?
Not at the moment. ZOOT is for Android phones, foldables and tablets.
Free to use, no app needed
How to plan a DJ setSeven steps, why each one matters, and the results to expect and avoid. Take the tourEvery main screen, and what each one is there to tell you. Getting startedThe setup wizard, step by step. Mixkey wheelTap a key, see every key that mixes with it. Key converter1A–12B, Open Key and musical notation in one table. Half and double timeWhich tempos genuinely pair with yours. Set length calculatorHow many tracks a slot really needs. Track key and BPM listKey, tempo and energy track by track, with what mixes out of each. GuidesPlanning a set, harmonic mixing, energy flow and warm-up sets, in plain words.Saturday's set is already in your library.
It just hasn't been put in order yet.
Get ZOOT on Google PlayAndroid · Free to start · No login