Drum & Bass Track Deconstruction
A 174 BPM liquid-leaning DnB blueprint — layered breaks, Reese + sub split, ride-driven momentum and a 32-bar switch — rebuilt element by element in Live 12.
The blueprint is a rolling, liquid-leaning drum & bass track in the spirit of the Hospital / Soul:r lineage, with a slightly darker second drop: 174 BPM, D minor, 176 bars (4:03). Mood: forward-leaning and warm, with a sub you feel rather than hear. Three decisions carry it. One: the drums are a two-layer system — a clean, hard-hitting programmed kit on top and a processed break underneath, and the break is ducked out whenever the kit hits so they never smear. Two: the bass is split into a mono sub (Operator) and a Reese mid layer (Analog) that share the same MIDI clip, and only the mid layer gets modulated. Three: the 16-bar DJ intro and the 32-bar breakdown are real structural beats, not filler — the arrangement is built for mixing at 174 where 16 bars pass in 22 seconds.
- Tempo
- 174 BPM. 1 bar = 1.379 s; 16 bars = 22 s; 1/16 = 86 ms.
- Key
- D minor. Sub root D0 = 36.7 Hz; bass phrases centre on D0–D1 (36.7–73 Hz) with F and A as the moving notes.
- Length
- 176 bars = 4:03
- Swing
- Programmed kit is straight; the break layer carries its own sampled swing. Groove pool: MPC 16 Swing 54% on hats only.
Arrangement
Energy curve: DJ intro (kick/snare only, pad, atmos) → build adds the break and ride and the Rhodes stabs, the vocal phrase lands at bar 24 as a cue → Drop 1 at bar 32 is the full system → the Switch at 64 keeps drums going but chops the break into a double-time pattern and swaps the Reese for a darker version → Breakdown at 80 pulls all drums, leaves pad, vocal, atmos; the sub returns alone for the last 4 bars → Drop 2 at 112 is Drop 1 with the second-drop Reese and more ride → Outro from 144 drops the bass at 152, drums at 160, pad to the end.
Transitions are DnB-standard: a 4-bar filtered-noise riser (not loud), a 2-bar snare roll at 1/16 then 1/32 using the kit snare with Velocity Shaper, and a 1-beat total drop-out before each drop so the first kick and sub arrive into silence. The 16/32-bar grid is sacred — every event lands on a multiple of 16.
Frequency layering
DnB at 174 has almost no time between hits, so overlap is the enemy. The kick's fundamental (around 50–60 Hz) sits inside the sub's range and they are not sidechained hard — instead the sub pattern is written so sub notes mostly start on the kick and sustain through, and the kick is short (under 120 ms). The Reese is high-passed at 100 Hz; everything else at 200–250 Hz or higher.
Element by element
Programmed kit: kick and snare as the skeleton
A tight kick and a bright, layered snare on the two-step pattern. This is the layer that gives the track its punch; the break underneath gives it the feel.
- Kick: Drum Sampler with a short punchy sample, Decay around 110 ms, Punch 50%. The kick needs to be gone before the next 1/8.
- Snare stack as in the rack: acoustic body for 200 Hz, electronic crack for 4 kHz, noise burst for the top. Glue after the rack at 4:1, attack 1 ms, release 50 ms.
- Write the two-step pattern. Kick 1 and step 11 (the "and" of beat 3 in 1/16 terms = 2.3). Snare on 2 and 4, always.
- Ghost snares at velocity 35–50 on a separate pad with the same snare but 6 dB quieter and HP 400 Hz. Move them every 8 bars.
Break layer: sliced in Simpler, band-passed, ducked by the kit
A funk/soul-style break (use a royalty-free or self-played one), sliced to 1/16, re-sequenced to follow the kit, and compressed so it feels like one performance. It sits underneath the kit and provides the roll.
- Warp the break in Beats mode, Preserve 1/16, Transient Loop Mode Off. Match tempo to 174 (most classic breaks are 90–100 BPM: at 174 they play double-time, which is the point).
- Drop into Simpler, Slice mode, Slice by Transient, sensitivity so you get 16 slices per bar. Playback Mono so slices cut each other.
- In the MIDI clip, rebuild the break: kicks of the break on the kit's kicks, snares on 2 and 4, then rearrange the ghost hits in between. Keep 2 or 3 "wrong" slices per 2 bars for interest.
- Band-pass 200 Hz–5 kHz. The break contributes no low end and no air.
- Compressor with sidechain from the kit bus: 5 dB GR, 1 ms attack, 40 ms release. The break ducks every time the kit hits and swells between — the "breathing" of a good DnB drum pattern.
Variations: for the Switch section, duplicate the clip, set Simpler to 1/32 slices and play every slice twice as fast for 2 bars out of 8; for jungle, drop the kit entirely and let the break take over with HP at 60 Hz instead of 200 Hz.
Ride and hats: the momentum layer
A constant 1/8 ride with 1/16 hats underneath, both swung 54%. At 174 the ride is what makes the track feel fast; the kick and snare alone would feel like 87 BPM.
- Ride sample, decay 250 ms. 1/8 pattern, accent (velocity 110) on downbeats, 80 on offbeats.
- Closed hat on the 1/16 offbeats only — it fills the gaps between ride hits. Apply MPC 16 Swing 54% from the Groove Pool to this clip only.
- Shaker on every 1/16 with Velocity Shaper random ±20%, 10 dB under the ride. It's felt, not heard.
- Open hat on step 11 (with the second kick) in the drops only.
Sub: Operator sine, mono, no modulation ever
The foundation. A pure sine with a tiny bit of Saturator for a 2nd harmonic, high-passed at 30 Hz, mono. It shares the Reese's MIDI clip via an Instrument Rack so the two layers always agree.
- Operator, A sine only, amp env A 3 ms, D 1 s, S 0.8, R 80 ms. Glide 40 ms, Legato, 1 voice.
- Saturator Soft Sine Drive 3 dB — just a hint of 2nd harmonic. Then LP at 110 Hz 24 dB/oct so there is nothing above the Reese's HP.
- Pattern: D0 held across the kick on beat 1, moving to F0 or A0 on the and-of-3 kick, with occasional 1/16 stabs. Rests matter — a sub that never stops has no groove.
Reese mid layer: Analog detuned saws through Roar
The character layer. Two saws detuned around 14 cents, low-passed, saturated, high-passed at 100 Hz so it sits on top of the sub without adding to it. The beating of the detune at ~0.3 Hz is the "hover" of classic Reese.
- Analog: Osc 1 saw, Osc 2 saw, Osc 2 Detune −14 cents (use the fine tune), both into Filter 1 (LP2 24 dB) at 600 Hz, resonance 10%. Filter env amount small (+15%), decay 200 ms.
- Voices: 1 (mono), Glide on 40 ms to match the sub. Unison Off — the detune does the thickening.
- Auto Filter (12.2) LP 24 with a touch of Drive and the envelope follower at 30% — the filter opens with the note's attack and the Reese "speaks".
- Roar Serial routing: stage 1 Soft Sine 6 dB, stage 2 Fold 2 dB; post filter LP 4 kHz. Fold adds the metallic upper mids that make Reese cut.
- EQ: HP 100 Hz steep, dip 250 Hz −2 dB (muddiest zone against the snare body). Utility width 70% in drops; 0% in the DJ intro if the bass appears there.
| Parameter | Value | Why |
|---|---|---|
| Osc 2 detune | −10 to −18 ct | Beat frequency at D0 ≈ 0.3 Hz; wider detune = faster, more aggressive hover |
| Filter cutoff | 400 Hz (verse) → 1.2 kHz (drop 2) | Automate the "Open" macro per section; the filter is the Reese's arrangement |
| Roar Drive | 6 dB liquid / 14 dB neuro | Grit macro — Drop 2 gets 3 dB more than Drop 1 |
Variations: neurofunk — resample the Reese, re-pitch in Sampler with Roar Feedback routing and an LFO on Roar's filter; see neuro bass. Jungle — drop the Roar, use Analog's own filter drive and add Chorus-Ensemble at 20%.
Pad and chord bed: Wavetable with slow unison, ducked by the kit
A wide, slightly grainy pad playing Dm9–Bbmaj7–Gm9–A7sus4 over 8 bars. It's the harmonic glue of the whole track and the only thing left in the breakdown.
- Wavetable, Osc 1 from Collection (a string-like or vocal table), Osc 2 same table +7 st at −8 dB. Unison Classic, 4 voices, amount 20%. Filter Clean LP 2.5 kHz.
- Amp env A 400 ms, D 1 s, S 0.8, R 1.5 s. The slow attack means it swells in behind the kit.
- Sidechain Compressor keyed from the kit bus — 4 dB, release 120 ms, so the pad pumps at 1/8 with the two-step.
- HP 250 Hz, width 150%. The pad is the widest thing in the mix and has no low end at all.
Rhodes stabs: Electric with 1/8 dotted delay
Short, off-beat chord stabs from Electric that answer the snare. Liquid signature; they also mark the harmonic rhythm so the pad can be slow.
- Electric, tine model, velocity-sensitive mallet. Release short (200 ms) so stabs are tight; let the delay carry the tail.
- Delay (not Echo here — simpler) at dotted 1/8 = 517 ms at 174, ping pong, LP 3 kHz, feedback 25%.
- Velocity: first stab 100, echo-stab 70. Draw them in; don't quantize the second one perfectly — 10 ms late is right.
Vocal phrase: chopped, Auto Shift harmonised, washed
A single 2-bar phrase (a sung word or two) used as a hook cue in the build and as the breakdown's centrepiece, harmonised a fifth above by Auto Shift.
- Warp the phrase Complex Pro to 174 (it will likely be half-speed source material; warp so the phrase fits 2 bars or 4).
- Auto Shift: scale D minor, correction 60% (natural, not T-Pain), add one harmony voice +7 st at −8 dB with slight vibrato.
- Echo with Duck on, so echoes blossom only after the phrase ends; the Echo's built-in Reverb at 30% for a diffuse tail.
- In the breakdown, add Hybrid Reverb Shimmer at 5 s decay — a touch of octave-up shimmer makes the vocal sound like it opens the room.
FX: filtered riser, snare roll and the drop-out
Minimal but essential: a 4-bar noise riser, a 2-bar snare roll using the kit's own snare, and a 1-beat silence before each drop.
- Riser: Operator A noise, one 4-bar note. Auto Filter band-pass, automate frequency 300 Hz → 6 kHz over the 4 bars (curve exponential). Automate Utility gain up. Keep it 10 dB under the drums — a DnB riser is a hint.
- Snare roll: duplicate the kit snare clip, draw 1/4, 1/8, 1/16, 1/32 subdivisions over 2 bars, apply Velocity Shaper ramp 60 → 127.
- Drop-out: delete the last beat of every element before the drop. The reverb tails carry the gap.
Mix decisions
DnB mixing is bus-first. Four buses: Kit, Break, Bass (sub + Reese rack), Music (pad, Rhodes, vocal, atmos). The Kit bus is the sidechain key for both the Break and the Music bus; the Bass bus is never ducked.
| Source (trigger) | Target | Amount / settings | Why |
|---|---|---|---|
| Kit bus | Break layer | Compressor, 5 dB GR, attack 1 ms, release 40 ms | Break breathes between kit hits |
| Kit bus | Music bus (pad, Rhodes, vocal) | Compressor, 3–4 dB GR, release 120 ms | Pump at 1/8 gives the roll |
| Kick (pad only) | Reese mid | Compressor, 2 dB GR, release 60 ms | Light — only clears the 100–200 Hz overlap at the kick's attack |
| — | Sub | None | Sub stays constant; pattern avoids the clash |
| Ride | Atmos texture | Compressor, 3 dB, release 80 ms | Atmos flickers with the ride so it feels rhythmic |
Width per element
| Element | Width | Note |
|---|---|---|
| Sub | Mono | Utility Mono in the rack chain |
| Reese | 70% (drop), 0% (intro) | Width macro automated |
| Kick / snare body | Mono | Crack layer slightly wide via sample |
| Break | 90% | A little narrower than natural so the kit reads as the leader |
| Ride / hats | 115%, subtle Auto Pan | Movement without blur |
| Pad | 150% | HP 250 Hz, widest element |
| Rhodes / vocal | 110–120% | Ping-pong delay provides the rest |
Build it yourself in 10 steps
- New Set at 174 BPM, D minor. Tracks: Kick, Snare, Ghost, Ride/Hats, Break, Bass (rack), Pad, Rhodes, Vocal, Atmos, FX. Group into Kit, Break, Bass, Music buses.
- Program the 2-bar two-step kit (kick on 1 and 2.3, snare on 2 and 4). Build the 3-layer snare rack.
- Warp a break to 174, slice in Simpler, re-sequence under the kit. Band-pass 200 Hz–5 kHz, sidechain from the Kit bus.
- Ride 1/8, hats on offbeats with 54% swing, shaker on every 1/16 with random velocity.
- Bass rack: Operator sub chain + Analog Reese chain, 4 macros. Write the 2-bar bass line with held D0 and moving notes on the second kick.
- Pad progression (8 bars, Dm9–Bbmaj7–Gm9–A7sus4) in Wavetable, sidechained from Kit. Rhodes stabs after the snares with dotted-1/8 delay.
- Vocal phrase through Auto Shift in D minor; make a 1-bar stutter version with Simpler Slice.
- Make 3 drum variants (verse, drop, switch with 1/32 break chops) and 2 bass variants (Drop 1 filter 600 Hz, Drop 2 1.2 kHz + more grit).
- Arrange on the 16-bar grid: 16 intro / 16 build / 32 drop / 16 switch / 32 breakdown / 32 drop / 32 outro. Riser + snare roll + 1-beat drop-out before each drop.
- Mix per the sidechain map, Bass Mono at 120 Hz, Glue on Kit and master, limiter at −0.3 dB. Mono check; check the sub on headphones at D0 and A0.
Variations
| Direction | What changes |
|---|---|
| Neurofunk | Reese replaced by a resampled, Roar-Feedback-modulated bass; kit harder (snare crack +4 dB, kick with more click); pad replaced by stabs; see neurofunk. |
| Jungle | Drop the programmed kit, run 2 breaks (Amen-style and a funk break) chopped at 1/16 and 1/32, HP at 60 Hz; sub becomes an 808-style sine with longer decay; dub sirens and ragga vocal; see jungle. |
| Dancefloor / jump-up | Simpler: no break layer, bigger snare, Reese replaced by a Wavetable "talking" bass with LFO on Position at 1/8; shorter breakdown. |
| Halftime | Same tempo, snare on 3 only, bass as 808-style gliding sub; see halftime track. |
| Minimal / deep DnB | Kit quieter, break louder and darker (LP 3 kHz), Reese almost closed (300 Hz), long pad, no Rhodes — in the spirit of the autonomic sound. |
Related
- Drum & bass genre page · Jungle / breakbeat · Neurofunk · Halftime / footwork
- Reese bass · Sub bass · Neuro bass · Snare & clap · Hi-hats & percussion · Pads & atmospheres · Voice & vocals
- Reese rack · Sub bass rack · Drum bus rack · Vocal chop rack · Riser FX rack
- Sidechain & ducking · Compression & glue · Layering rules · Mix templates
- Sampler / Simpler / Drum Rack · Analog & Drift · Roar & saturation · BPM to ms