DJ Automix Explained: When to Use It (and When Not)

By NaJade · DJ in Bangkok · Published November 8, 2026

This guide is part of the complete guide to DJ software.

Automix is the feature DJs pretend they never use. Most working DJs use it more than they admit.

Every major DJ app can now play a playlist by itself, mixing from one track into the next without anyone touching the controller. That sounds like it should make DJs obsolete. In practice, automix is a utility, like a backup generator: brilliant for the dinner hour at a wedding or a two-minute break, useless for reading a dance floor. Here’s how it works and how to set it up so it doesn’t embarrass you.

DJ automix plays a playlist automatically, crossfading or beat-mixing from one track into the next. rekordbox, VirtualDJ, djay and others all have it. Use it for background sets, breaks and long event hours; set sensible mix points and transition lengths first. Never rely on it for a peak-time or club set.

What Automix Actually Does

At its simplest, automix watches the track that’s playing, decides when it’s nearly finished, and starts the next track in the list. Better implementations also match tempo, skip long intros and outros, and choose a transition style. None of them choose the next song for you in a meaningful way — they play the order you gave them, or shuffle it.

That’s the key limitation. Mixing is a technical skill, but DJing is mostly selection and timing. Automix handles the first part reasonably well and the second part not at all. For more on why, see should DJs use sync? — the same argument applies.

Automix in the Main DJ Apps

Software	Where to find it	What you can control
rekordbox	Automix playlist in Performance mode	Track order and play mode; uses your analysed grids
VirtualDJ	Automix panel in the browser sideview	Smart or fade-based transitions, length, repeat, shuffle, single or dual deck, per-track mix-in and mix-out points
djay	Automix mode	Transition style (fade, filter, EQ, echo, Neural Mix and more), duration in bars or seconds, tempo handling, start and end points
Serato DJ	Autoplay in the browser	Loads and plays the next track; much more basic than true automix

VirtualDJ’s automix manual is the most detailed of the lot: its “Smart” mode picks mix points from the outro of one track and the intro of the next, while the fade modes let you choose whether to remove intros, outros or just silence. djay’s automix settings go further on transitions, with options from a simple fade to stem-based Neural Mix blends. Software overviews: rekordbox, VirtualDJ and djay.

How to Set Up Automix Properly

Build a dedicated playlist. Don’t automix your whole library. Make a playlist for the purpose — “dinner”, “warm-up”, “break” — in the order you’d actually play it.
Check the beat grids. Automix tempo matching is only as good as the analysis. Fix any track with a drifting grid before it goes in the list.
Set mix-in and mix-out points. Where the software allows it, mark where each track should start and end. This stops automix cutting a song mid-vocal or playing 60 seconds of a DJ-tool intro.
Choose a conservative transition. A clean eight-bar or few-second fade is safer than echo or filter sweeps, which can sound mechanical when they repeat every three minutes.
Keep tempos and keys close. Automix copes badly with big BPM jumps. Group tracks within a few BPM of each other.
Test it end to end. Let it run for 20 minutes at home and listen for awkward joins. Fix those tracks rather than hoping for the best.

When Automix Makes Sense — and When It Doesn’t

Good use	Bad use
Wedding dinner or cocktail hour	First dance or peak-time dance floor
A short toilet or food break during a long gig	A club set people paid to see
Background music for a shop, café or corporate lunch	Any moment where you need to react to the crowd
Listening through a new playlist for flow	Replacing practice on your own transitions

At weddings in Thailand, a two-hour dinner session is often expected before the dancing starts. Automix with a well-built playlist lets you concentrate on the MC, the timeline and the sound. More on running those events in how to DJ a wedding and how to DJ a house party.

Does Using Automix Make You a Worse DJ?

Only if it replaces practice. If you learn to DJ by letting the software mix for you, you never build the ear for phrasing and energy that makes people trust you with a room. Use automix the way a chef uses a stock cube — handy on a long day, but not what you serve when it matters. To get better at the real thing, work through DJ transition techniques and how to build a DJ set. Official app details are at rekordbox.com.

A Note From NaJade

I’ll be honest about this one: I use automix. At a long wedding in Bangkok, the dinner session can run two hours, and I’d rather spend that time checking the microphones, talking to the planner and making sure the first dance track is cued than nudging background jazz into background bossa nova. What I never do is let it play a single minute once people are dancing. The moment the floor starts, every transition is mine. I think that’s the healthy way to see it — automix covers the moments where nobody’s really listening, so you have more energy for the moments where everyone is.

Frequently Asked Questions

What is automix in DJ software?

Automix is a feature that plays a playlist automatically, starting each new track as the previous one ends and blending them with a fade or beat-matched transition. Depending on the app, you can set the transition style and length, trim intros and outros, and choose whether tracks play in order or shuffled. It does not choose songs based on the crowd.

Does rekordbox have automix?

Yes. rekordbox has an Automix playlist in Performance mode that plays tracks in sequence and blends between them using your analysed beat grids. Build a dedicated playlist in the order you want, check the grids first, and test the full list at home before relying on it at an event.

Is using automix cheating as a DJ?

Not when it is used for the right moments. Automix is widely used for dinner hours, breaks and background music at long events. It becomes a problem only if it replaces the skills people booked you for — choosing tracks, timing transitions and reading the dance floor. Use it as a tool, not as your set.

How do I stop automix cutting songs at the wrong time?

Set mix-in and mix-out points on each track where your software allows it, fix any drifting beat grids, and pick a moderate transition length. VirtualDJ, for example, lets you set separate automix mix-in and mix-out points per track, while djay lets you define start and end points or use those already in the song.

Can automix beatmatch tracks?

Most modern automix modes adjust tempo so the beats line up during the transition, provided the tracks have been analysed correctly. Results are best when tracks are within a few BPM of each other. Big tempo or genre jumps often sound awkward, so group similar tracks together or use a short fade for those changes.

When should a DJ use automix?

Use automix for background situations: wedding dinners, cocktail hours, corporate lunches, café music and short breaks during long gigs. Avoid it for anything the crowd is actively dancing to or came to hear, because automix cannot react to the room. Always test the playlist beforehand and stay close to the decks while it runs.

About the Author

NaJade is a Bangkok-based DJ playing progressive house, melodic EDM, pop, and Thai music across clubs, rooftops, and weddings in Thailand. He teaches beatmatching and mixing to beginners both in person in Bangkok and online over Zoom. When he’s not behind the decks, he’s documenting the journey on YouTube, Instagram, and TikTok.

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