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experimental · 135 BPM · 2000s-present

Work In Progress

Leftfield bass

A experimental style.

Bass music that refuses a subgenre: rhythm experiments and weird sound design from the SoundCloud cracks.

Paused while the core acid-house, techno, and progressive-house lanes are made strong enough for Live.

experimental sound-designed half-time unclassifiable
Library Jammy Jammy holding up a labeled jam jar, used on Jam Library / per-style pages. The jar color is intended to swap to match each style accent. STYLE style
STYLE style

What it sounds like

Leftfield bass is the catch-all category for bass music that doesn’t fit existing subgenres — producers exploring rhythmic and textural experiments at bass-music BPMs (130-150) without committing to dubstep’s wobble, DnB’s rolling drums, or trap’s half-time grid. Burial is the canonical influence; the post-Burial generation (Mr. Mitch, Sega Bodega, Visionist, Pinch) carried the experimentation forward. Labels like Hyperdub and PAN are the genre’s homes.

A bar in and you’ve got it: a half-time or syncopated drum pattern at 130-150 BPM, unusual sound design (granular textures, vocal chops, found-sound percussion), deep sub bass following slow chord motion, and chord pads that drift in and out of tonality. The genre is moody, introspective, and unconcerned with dance-floor function.

The chord moves

Leftfield bass uses modal cycles in natural minor with frequent modal interchange (borrowing from parallel major or relative). The chord pad is atmospheric — soft attack, lots of reverb, wide voicings. Sometimes the harmony is implied by texture rather than stated.

--chord minor9 --voicing wide --pattern stab and let the pad drift while drums experiment.

The groove

Half-time at 130-150 BPM — perceived backbeat ~65-75 BPM. The kick is soft and recessed, the snare is replaced by a vocal chop or processed crash sample. Hi-hats are glitched — granular processed, pitched, gated.

The drums are sound design more than rhythm — every hit is processed individually for textural interest. Build break-like patterns inspired by jungle, garage, and trap, then run your own or licensed material through experimental processing.

The sounds

  • Drums: chopped from your own, licensed, or royalty-free source material, granular processed, layered with found-sound textures.
  • Sub bass: deep sine wave following root motion. Slow notes. Plenty of space.
  • Pad: lush poly with long attack, wide voicings, granular reverb tail. Drifting in and out.
  • Vocal chops: licensed or self-recorded phrases, pitched and granular-processed. Used as percussion or melodic content.
  • Atmospheres: field recordings, granular synthesis, modular noise. Heavy textural layering.

Production tells

Want it modern? Cleaner mix, more refined granular processing, modern compression. Contemporary leftfield bass (Sega Bodega, Yves Tumor) is sharper while keeping the experimental edge.

Want it 2007-Burial-vintage? Lo-fi DAT-tape grit, vinyl crackle on every layer, slightly muddy bass. Tape saturator on the bus. Master at -14 LUFS for the dark, wide-dynamic Burial feel.

piano roll
135 BPM · 4 bars · base oct 3
C3C4
Fm9
Cm7
Eb
Bbm7
Hear the chord moves 135 BPM · stab

Fm9 → Cm7 → Eb → Bbm7

Click to hear it.

Listen to

Three records that show the style at full strength. Read them as listening pointers, not templates to copy.

Six recipes

Six ways to cook Leftfield bass.

One starter recipe, three variations that each take the style in a different direction, one sectioned recipe, and one curated Live handoff recipe. Each one cooks from a Markdown recipe — edit it before the MIDI lands in your DAW.

Starter

Pressure Cluster System

130-140 BPM

A leftfield-bass first cook with Euclidean cluster hits, Reese bass, cluster pads, and random-arp fragments.

pressure clustered low-end

Study: Eprom, “Drone Warfare” (2012). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_pressure_cluster_system.md

Variation

Dubby Low Signal

130-140 BPM

A dubby leftfield lane with lofi push-pull chords, pedal bass, slow pads, and sparse motif signals.

dubby low signal

Study: Alix Perez, “Forsaken” (2013). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_dubby_low_signal.md

Variation

Phrygian Rattle Cell

130-140 BPM

A rattling cell with ratcheted chords, Reese bass, fifth drones, and call-response fragments.

rattling phrygian cell

Study: Ivy Lab, “Cake” (2015). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_phrygian_rattle_cell.md

Variation

Sub Void Stabs

130-140 BPM

A sparse low-end lane with dubstep stabs, pedal bass, root drones, and simple motif detail.

void subby sparse

Study: G Jones, “In Your Head” (2018). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_sub_void_stabs.md

Sectioned

Sound-System Section Sketch

130-140 BPM

A section-aware leftfield-bass sketch that moves from pressure bed to abstract low-end return.

arranged sound-system pressure

Study: Shades, “Creepin” (2016). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_sound_system_section_sketch.md

Live handoff

Live Low-End Lab

130-140 BPM

A Live leftfield-bass session with section clips, sound cards, and licensed texture/FX prompts.

live low-end lab

Study: The Glitch Mob, “Animus Vox” (2010). Use the reference for low-end experimentation, negative space, and original sound-design-first motifs, not for melody, hook, groove, or sound design copying.

python jamburgr.py --config configs/recipes/leftfield_bass/leftfield_bass_bridge_ready_low_end_lab.md

Ready when you are

Cook a Leftfield bass pack.

Drop this in your terminal and you'll have a Standard MIDI pack in a folder, ready to drag into Live. Edit anything, swap any sound, throw out what doesn't work.

terminal
python jamburgr.py --key "F minor" --style leftfield_bass --progression i,v,III,VII --pattern stab --output-mode pack --out ./jams/leftfield-bass