How to build a DJ set: warm-up, energy and track order

Start with your slot, not your playlist

Before you pick a single track, ask yourself three questions: what time you're playing, who's on before and after you, and how many people will be on the floor when you start.

• The warm-up (opening set) sets the mood. The room is filling up, people are talking, they don't feel like jumping yet. Your job is to get them moving without rushing it: a slightly lower tempo, held-back energy, tracks the next DJ won't want to play.
• Peak time (prime time) is when the floor is full. That's when the strongest tracks go on, but even a peak needs breathers.
• The closing (last set) walks people out. You can slow down, go back to more melodic tracks, or end on a classic everyone knows.

The worst warm-up habit is playing your best tracks at 10 p.m. to an empty room. You won't have them anymore when the floor is full, and you'll put the next DJ in a tough spot.

The energy curve

A track's energy isn't its volume. It's the intensity it gives off: how dense the drums are, how present the bass is, how much tension the chorus carries. On Nocti Pool, every track gets an energy rating from 1 to 5, calculated by analyzing the file. Here's how the catalog breaks down:

• very laid-back5%
• laid-back28%
• moderate36%
• energetic24%
• intense7.5%

A good set doesn't climb in a straight line. It moves in waves: three or four tracks that build, then one that lets the room breathe, then a new build that goes a little higher than the last. Those breathers give the big moments their impact. Without them, the crowd gets tired before the peak.

BPM: climb in small steps

Tempo often follows energy, but slowly. In house, a warm-up can start around 118 or 120 BPM and end around 124, so the next DJ can pick up between 124 and 128. Go up 1 or 2 BPM every two or three tracks: the crowd doesn't feel the climb, they just feel the night taking off.

Bigger jumps happen, but they take prep: a hard cut, a transition track or a trip through half time. The BPM by genre guide gives the tempo of 21 styles and the ways to move from one to another.

Keys: keep the thread

At every transition, the next track's key decides whether the blend will sound right. Stay in the same key, move to a neighbor or switch to the relative, as explained in the Camelot wheel guide. A +2 boost on the wheel can also mark the start of peak time.

An example: a five-track build

Here's a build made only with tracks from the catalog, the way you might play it at the end of a warm-up:

1. 1I Adore You (Extended Mix)Arash, Hugel, Topic, Daecolm · Afro House120.1 BPM10Astart
2. 2Jamaican (Bam Bam) (Extended Mix)Hugel & Solto (Fr) · Afro House122.1 BPM9Aneighbor -1
3. 3Drop The Pressure (Purple Disco Machine Remix)Claptone; Mylo · Nu Disco123 BPM9Asame key
4. 4Hotel Room Service (Ilyaa Remix)Pitbull · Tech House126 BPM10Aneighbor +1
5. 5Around The World (Westend Edit)Daft Punk · Tech House128.2 BPM9Aneighbor -1

Energy goes from 2 to 5, tempo from 120 to 128 BPM, and every transition stays harmonic: 10A, 9A, 9A, 10A, 9A. The genre shifts too, from afro house to tech house by way of nu disco. No single step is abrupt, but together they completely change the mood in the room.

Prep crates, not a fixed list

A set written out in advance, track by track, rarely survives the reality of the dance floor. Prep crates instead:

• by role: opening, build, peak, breather, closing;
• by energy: one folder per level, from 1 to 5;
• safe bets: two or three tracks that always work, to win back a floor that's emptying.

Plan on two to three times more tracks than you'll actually play. For one hour, a house or techno DJ usually plays 12 to 18 tracks; in open format, with short versions, it can go up to 25 or 30. The Organize your DJ library guide explains how to set up these crates in your software.

During the set

• Watch the floor more than your screen. People heading to the bar, people arriving, people singing along: that's your dashboard.
• Don't play all the hits back to back. A hit lands harder when it comes after a breather.
• Leave some room at the end of your slot. Finish on an energy level the next DJ can pick up from, not on your biggest track.

Frequently asked questions

How many songs do you need for a 1-hour DJ set?

In house or techno, with long transitions, between 12 and 18 tracks. In open format or hip-hop, with short versions, more like 25 to 30. Always prep two to three times more tracks than you'll play.

Should you plan your DJ set in advance?

Prep your crates and a few safe transitions, not the full order. A fixed set can't adapt to the crowd; a set with no prep leaves you hunting for tracks at the wrong moment.

How do you play a good warm-up set?

Play a little slower and a little less intense than the room could handle, save your strongest tracks for later, and finish on an energy level the next DJ can take over from.