Getting groove and low-end right separates throwaway loops from working UKG/Bass records. This post focuses on repeatable decisions: selective swing, mono-tight subs, chopped vocal hooks, and restrained FX.
This post covers:
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Drum programming with selective swing
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Sub and mid-bass layering that survives clubs
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Chopped vocal workflows
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Arrangement that moves without clutter
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Mix discipline for translation
What Defines UKG & UK Bass?
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Tempo: 126–135 BPM
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Grid feel: shuffled 16ths; swing applied to hats/percs, not the kick
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Drum aesthetic: tight transients, minimal smear
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Bass: clean sub in mono; character from a separate mid layer
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Vocals: short phrases used rhythmically
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Arrangement: edits and rotation of parts, not density
Personal Philosophy on Groove & Low-End
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Groove is carved by what stays rigid (kick) versus what shuffles (hats/percs).
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Sub is weight, mid-bass is personality—never trade one for the other.
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Width belongs above the low-mid; keep foundations centered.
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Variation is binary: change one meaningful element per section.
Step-by-Step: Build a UKG/UK Bass Track
1) Program Drums with Selective Swing
Settings:
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BPM: start 128–132
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Kick: short–medium decay, no reverb
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Clap/Snare: tight transient, short tail
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Hats: offbeats plus shuffled 16ths; 52–56% swing on hats/percs only
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Ghosts: −12 to −20 dB below main hats for micro-movement
Result: the kick anchors; hats and ghosts create the pocket.
2) Design the Sub Layer (Mono)
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Oscillator: sine/near-sine, single voice
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Processing: gentle low-pass ~80–120 Hz, no chorus, no stereo
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Envelope: fast attack, medium decay to avoid overhang
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Tuning: avoid fighting the kick’s fundamental; check polarity alignment
3) Add Mid-Bass for Character
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Source: saw/square with light FM or drive pre-filter
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Band: 120–1.2 kHz focus; high-pass to clear sub region
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Movement: tempo-locked LFO on filter or phase for bounce
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Parallel: keep a clean sub lane; never distort the actual sub
4) Sidechain Bass to the Kick
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Detector: kick only
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Attack: fast
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Release: 50–150 ms, tuned to kick length
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Aim: transient clearance; audible pumping is optional, not required
5) Build a Vocal Hook by Chopping
Workflow:
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Slice on transients; map to a sampler
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Quantize to groove; nudge against hat placement
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Pitch: ±3–7 semitones; subtle formant shift
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Space: micro-delays (<30 ms) or early reflections; high-pass 120–180 Hz
6) Stabs, Keys, and Ear-Candy
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Stabs: short chords with envelope-shaped filter; rhythm first
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Keys/Organs: M1-style or square-based; percussive decay
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Pads: sparse; reserve for breakdowns
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Ear-candy: 1–2 beat edits at 8/16-bar boundaries only
7) Arrange for the Floor
Structure:
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16–32 bar intro (DJ-friendly)
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First drop (core motif)
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Breakdown/reset
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Second drop with one new element
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Functional outro
Variation method: rotate one element per section (e.g., hats A/B, bass phrase A/B, vocal alt). Do not stack variations.
Important Reminder: Low End = Mono
Keep subs mono for club, car, and small-speaker reliability. Width lives in highs and upper mids; the lowest octave anchors the track.
TL;DR:
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126–135 BPM; swing hats/percs, not kick
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Kick short; clap tight; ghosts for movement
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Sub mono and clean; mid-bass carries character
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Sidechain for transient clearance
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Vocal chops as rhythmic hooks
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One meaningful change per section
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High-pass non-low-end; verify mono compatibility
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Limit last; preserve punch over loudness