Definition
An EDM track (house, big room, progressive, future bass, dubstep, trance, drum and bass) is built from 8-bar phrases and sections that are multiples of 8 (16, 32), designed for the DJ (who mixes tracks by overlapping intros and outros) and for the dance floor (build-ups and drops). Arranging is above all a matter of managing energy.
The sections
- Intro (16–32 bars): in the extended mix, often just drums (kick, hi-hat) so the DJ can mix. In the radio edit, 4–8 bars.
- Breakdown (16–32): the kick drops out; pads, chords, melody and vocals come in. The emotional moment.
- Build-up (8–16): tension rises toward the drop.
- Drop (16–32): maximum energy, full kick and bass, the lead or main hook. In vocal EDM the drop often replaces the sung chorus.
- Second breakdown and build-up, second drop (often varied: new lead, different bass, a change in sound design).
- Outro (16–32): back to the essentials for the outgoing mix.
An extended mix often runs 5–7 minutes, a radio edit about 2:30–3:30.
Example map at 128 BPM
| Section | Bars | Content |
|---|---|---|
| Intro | 16 | kick, hat, percussion, FX |
| Groove | 16 | + bass, + filtered chords |
| Breakdown | 16 | pad, piano, vocals, no kick |
| Build | 8 | snare roll, riser, HP filter |
| Drop 1 | 16 | kick, bass, lead, clap |
| Breakdown 2 | 16 | harmonic variation |
| Build 2 | 8 | longer or more intense |
| Drop 2 | 16 | lead variation |
| Outro | 16 | kick, percussion |
At 128 BPM one bar lasts 1.875 s: 8 bars ≈ 15 s.
Build-up tools
- Snare roll: quarter notes → eighth notes → sixteenth notes → thirty-second notes over 8 bars, with volume and pitch rising.
- Riser: white noise through a rising high-pass or band-pass filter, or a synth with pitch rising 12–24 semitones.
- HP filter on the master or the music group: from 20 Hz up to 200–500 Hz, removes the weight and makes the absence of bass felt.
- Reverb automation: more reverb and delay as the build climbs.
- Pre-drop: 1 beat or 1 bar of silence, or just a vocal/effect, before the drop (“the drop” hits harder after the void).
- Downlifter / impact: a hit and a descending tail on beat 1 of the drop.
The drop
- Kick and bass: sidechain the bass from the kick (4–10 dB of reduction, release tied to the tempo), or use a bass that plays on the offbeat (house).
- Lead: a 2–4 bar hook, repeated and varied on the last repetition.
- Clap/snare on 2 and 4, open hi-hat on the offbeat, percussion.
- In future bass: supersaw chords with heavy sidechain and pitch bend; in dubstep: half-time at 140 BPM with modulated basses (wobble, growl).
Varying things so they don't get boring
- Change something every 8 bars (a fill, a layer, an effect).
- The last bar of every 8-bar phrase has a fill, or a crash in the following bar.
- The second drop has a variation (a change of bass, lead or rhythm).
Examples
- Avicii — Levels (2011): breakdown with the vocal sample, build and drop with the iconic lead.
- Martin Garrix — Animals (2013, 128 BPM): big room with a minimal drop based on a percussive lead.
- Swedish House Mafia — Don't You Worry Child (2012): vocal EDM with the chorus as the breakdown and an instrumental drop.
- Flume and Australian future bass: modulated chords as the hook.
Common mistakes
- Sections that are not multiples of 8: the DJ and the audience lose their reference.
- A build-up stronger than the drop (too much white noise, a drop that is too empty).
- Bass and kick clashing in the drop (missing sidechain or tuning).
Practice exercise
In FL Studio, create a 160-bar Playlist at 128 BPM with a marker for each section. Build the 16-bar drop first, then create the other sections by subtraction. For the 8-bar build-up use: a snare roll with pitch automation, a noise riser, an HP filter on the music bus, and one beat of silence before the drop.
Links
Tension and release, Developing an idea into a complete song, Arranging with synths, Layering, Meter, subdivision, half-time and double-time.