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Three Engines, Six Hybrids — Post-Prog-Metal
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About this reference
From the music-learning collection, adapted for Philojain Music Muse. Referenced sources remain credited in the article.
Three Engines, Six Hybrids — from Three Engines, Six Hybrids.
Three Engines, Six Hybrids
Technical anatomy of DevilDriver, Lamb of God & Gojira
Three bands that all get filed under "groove metal" and are actually built on three completely different mechanisms. DevilDriver is a hook engine. Lamb of God is a timing engine. Gojira is a texture-and-space engine. Once you can name the mechanism, merging them stops being vibes and becomes engineering — you decide which band owns which dimension of the song.
On tuning claims: I ran independent verification passes on all three bands, and the honest finding is that per-album tuning is not reliably documented for any of them. What's solid: Lamb of God's John Campbell confirms he records with Drop D, Drop C# and Drop C basses, one instrument per tuning. Gojira's best-supported recurring guitar tuning is Drop C (C-G-C-F-A-D). DevilDriver has no confirmed tuning statement I could find anywhere. Everything else in circulation is crowd-sourced tab metadata. So tuning appears below as a feel descriptor rather than a spec, because what the tuning is called matters far less than what it does to the string tension.
Part 1 — The Three Engines
DevilDriver — The Hook Engine
Gothenburg melodic-death top-lines welded to a Californian groove-metal chassis, engineered around the pit. Everything lands on the grid.
Riff architecture
- Two-layer design. A palm-muted open-string gallop on the bottom, a tremolo-picked melodic line on top. The melodic line is the hook — the chug is just the floor.
- Melodic vocabulary: natural minor and harmonic-minor/phrygian-dominant colour, harmonised leads in thirds and octaves. Mike Spreitzer names Björn Gelotte (In Flames) and Jerry Cantrell, and describes writing solos as "a song within a song" — phrasing over shredding.
- Later-era shift (Dealing with Demons, 2020/2023): the band deliberately slowed down and leaned into dissonance — minor and major 2nds, tritones.
- Feel: zero displacement. Hooks are downbeat-locked. This is the exact opposite of Lamb of God and it is the single most important thing to know when merging the two.
Drums
- Double-kick gallop as the default engine. Blast beats used as pure acceleration into a chorus — not as texture.
- Lineage: John Boecklin (2002–14) cited Scott Travis for precision and Joey Jordison for speed/fills. Austin D'Amond (2016–22) brought Chimaira groove weight. Davier Pérez (2022–) is described as "rapid, mechanical, utterly relentless."
- The signature move is the pivot: full-speed double kick → hard half-time stomp exactly at the chorus.
Bass, vocals, form
- Bass: hard pick attack, distorted, locked to root and kick. Not a melodic voice.
- Vocals (Dez Fafara): mid-range bark, no cleans by policy — he's on record dismissing the heavy-verse/melodic-chorus formula as lazy. The phrasing is the tell: syllabic, percussive, on-the-beat, built around a repeated titular phrase. That's Coal Chamber nu-metal cadence DNA plus punk phrasing (he took "Dez" from Black Flag's Dez Cadena). Gang-shout doubles on hooks.
- Form & tempo: 3–4 minute verse-chorus. The debut album averages ~129 BPM across a 91–185 range. Hook lands by 0:45.
- Production: Colin Richardson → Jason Suecof/Andy Sneap → Logan Mader → Mark Lewis. Mesa Dual/Triple Rectifier, Friedman BE-100, 5150, Soldano. Polished, forward mids, radio-tight low end.
Lamb of God — The Timing Engine
A sixteenth-note grid with notes deliberately removed, played by two guitarists who are intentionally not in the same millisecond.
Riff architecture
- The documented core trick: start from a straight sixteenth-note figure, then subtract one sixteenth, then two, then three. The syncopation is built by removal, not by adding notes. This is why their riffs feel like they're tripping forward while staying in 4/4.
- The two-voice spread is deliberate: "they shouldn't be a big mush of the same sound." Willie Adler plays dead on top of the quarter note, almost ahead of it. Mark Morton sits slightly behind it with a ZZ Top / Pantera swagger. That millisecond gap is the groove — it's a human timing spread, not notated swing.
- Morton: pentatonic, natural minor, blues, plus Marty Friedman's phrygian-dominant. Self-described "simple guitar player" — feel over speed. Bent notes, double-stops, no sweeps.
- Adler: self-taught, "plays from the gut," atonal noise and self-invented dissonant chords, low-string-heavy — "the tonality of the low string seems heavier to me."
Drums
- Chris Adler (1999–2019): twin 22" bass drums — not one kick with a double pedal — and he leads with the left foot because he's naturally left-handed playing a right-handed kit. A 12" snare (smaller than standard) for a pistol-pop crack. 32nd-note kick-triplet fills bookending phrases.
- His signature device: playing six over four against the band's nominally 4/4 riffs. That polymeter is described as almost a signature part of the band.
- Influences he names: Billy Cobham for restraint ("it's more important to not play than to overplay, I try to find holes to not fill"), Gene Hoglan for funk-in-metal, Shannon Larkin, Stewart Copeland.
- Art Cruz (2019–): per Morton, "a little less robotic, more feel oriented," with more finesse. Concretely — the band dropped its click-track reliance within a week of him joining. His stated core influence is Santana's Afro-Latin percussion.
- Myth check: the widely repeated claim that Chris Adler plays "single-foot double bass" doesn't survive scrutiny — the evidence is twin kicks with both feet tracked separately and a left-foot lead.
Bass, vocals, form
- Bass (John Campbell): pick player, riff-doubling. Where the guitars get complex he drops to whole notes for weight rather than competing for rhythmic space. On "Redneck" the bass and kick are dead-locked as a single unit.
- Vocals (Randy Blythe): three registers, but the distinguishing trait is clear enunciation while screaming — serpentine and legible, not guttural mush. Production tell: choruses stack one central growl under four pitched screams at higher registers. First true clean vocal was "Overlord" (2015).
- Form: riff-first, not verse-chorus-first. Morton has explicitly described rejecting conventional structure, citing Meshuggah's "mathy, off-time-but-on-time" approach — but singles still get an anchoring hook ("Redneck," "512," "Laid to Rest"). Albums average ~121 BPM across a 77–182 range; songs run 4–5 minutes.
- Production: Steve Austin → Devin Townsend (As the Palaces Burn only) → Machine (Ashes, Sacrament) → Josh Wilbur (Wrath onward). Stated philosophy: medium-to-low gain, no wall of saturation, midrange preserved so the two guitars stay separable. Mesa Mark IV/V, Badlander. "Clean is heavy."
Gojira — The Space Engine
Percussive staccato cells and octave voicings arranged around silence, with a jazz/Afro-Cuban-trained drummer playing tribal toms underneath.
Riff architecture
- Octave power chords instead of perfect fifths. This is the most important and least-copied detail in the band. Joe Duplantier uses octaves specifically because stacked fifths would neutralise the dissonant, alarm-like quality of the pick scrape. It's also why the guitars read as percussive rather than harmonically warm — there's no third, no fifth, nothing to soften the attack.
- Palm-muted staccato sixteenth cells with rests carved into them — described as "elephants marching," groove and impact over technical complexity. The riffs are minimalist, almost avant-garde.
- The whale-call siren, mechanically: it is a pick scrape (Joe also drags the skin of his thumb) across the strings under high gain. There's a downward fretting-hand slide from around the 12th fret too, but Joe says that part is "mostly for show — it doesn't do shit. You can do it with just your picking hand." It is not a whammy dive and not an artificial harmonic. It was born by accident on The Link tour (~2003) during live performances of "Embrace the World."
- Separate from that: DigiTech Whammy pedal pitch-dives, used heavily on Fortitude ("New Found," "Another World").
- Efficiency device: hammer-ons across two strings so one pick strike produces two notes — credited to Death's Spiritual Healing and Symbolic.
- Textures: natural harmonics, squeals, and unconventional tools — Joe slides a beer bottle across the strings for extreme highs.
- Dynamics as doctrine: "power is in the dynamic of the sound and the structure." He cites Black Sabbath's use of space over constant distortion as the model.
Drums (Mario Duplantier)
- Seven years at the Agostini school studying jazz drumming and Afro-Cuban percussion, with a teacher pushing "fineness, less-is-more, dynamics" — a deliberate counterweight to his self-taught metal side.
- Two bass drums, beaters set close to the head, loose kick tension. Ankles take over above ~200 BPM; ~180 is driven from the legs. Practises paradiddles over constant double bass in 30–60 minute blocks at 170–220 BPM.
- Tribal tom language explicitly from Igor Cavalera (Sepultura) — kick patterns and tom tuning; "my goal is to be as good as Igor Cavalera." Ghost notes from David Silveria. Restraint from Brad Wilk. Groove and footwork from Vinnie Paul.
- Blast beats are texture, played lighter — not maximum force. This is the opposite of how DevilDriver uses them.
- Left-foot independence drills literally generated the songs "Explosia" and "Remembrance."
Bass, vocals, form
- Bass (Jean-Michel Labadie): pick player, sits dead centre in the mix as an anchor rather than a subordinate. Tested at least twenty overdrives before settling on an Ibanez TS7 Tube Screamer, chosen because "the signal is solid through and through" without excess compression — it suits the hard pick attack.
- Vocals (Joe): "It's all from the gut. I'm screaming really loud" — instinctive rather than trained. Pitched screams with a retained pitch centre. SM7B in the studio, SM58 live, both chosen dark rather than bright. Throat singing on "Amazonia." Fortitude deliberately brought forward the choirs and backing vocals that earlier records had buried.
- Form & tempo: mid-tempo groove core — album averages 105–140 BPM, with outliers from 66 (Magma title track) to ~206 ("The Heaviest Matter of the Universe"). Songs run 4–7+ minutes. Joe's stated pacing rule: "we try to balance out the pace of every record by putting in a song with a calm intro." Backmasking on The Way of All Flesh.
- Production: mostly self-produced, with Logan Mader (Way of All Flesh), Josh Wilbur (L'Enfant Sauvage), Andy Wallace mixing Fortitude, Ted Jensen mastering. Deliberately dry — on The Link, "almost no delay on the vocals, there's no reverb." The pedalboard is a tuner, a noise gate and a delay: no overdrive pedal, all gain from the amp (EVH 5150III). Two Notes Torpedo cab sim in parallel with a mic'd cab. Fortitude prioritised the "raw result" over post-production.
- Honesty flag: no citable source maps specific Gojira songs to specific odd meters. What's documented is "atypical time signatures and uncommon song structures" in general, and asymmetry as a feel. Treat any confident "Backbone is in 7/8" claim as fan lore.
Part 2 — The Six Merges
Each band merged with each of the other two, as a directional pair: the lead band supplies the chassis, the guest band supplies the character. Reversing the direction gives a genuinely different song, which is why there are six and not three.
1. GALLOP DISPLACED
DevilDriver ▸ Lamb of God — DevilDriver drives; Lamb of God re-times it.
Hinge (what already agrees): Both are twin-guitar groove-metal bands writing for a crowd in motion, and both pivot between full-speed kick and half-time stomp. The furniture matches.
Friction (what fights): DevilDriver locks its hooks to the downbeat. Lamb of God's entire identity is pulling off the downbeat. Do both in the same bar and the hook dissolves into churn.
Resolution: Split the song by function, not by section. Verses run Lamb of God's subtracted-sixteenth grid with the two-guitar timing spread. The chorus snaps back to DevilDriver's downbeat lock with a harmonised melodeath top-line. The displacement in the verse is what makes the chorus feel like the floor levelling out — you're weaponising the friction instead of averaging it away.
Recipe
- Chassis: DevilDriver — open-string gallop, 150–170 BPM, ~4:00, hook by 0:45
- Verse riff grid: Lamb of God — sixteenths with one to three notes removed; guitars deliberately not micro-locked (one ahead, one behind)
- Chorus: DevilDriver — downbeat-locked, harmonised tremolo lead in thirds over the chug, repeated title phrase
- Drums: DevilDriver's gallop kick + Lamb of God's ghost-note snare and pistol-pop 12" crack; one six-over-four ride passage under the pre-chorus only
- Bass: Campbell method — riff-double in verses, whole notes under the chorus for weight
- Vocals: Dez's syllabic on-beat bark; Randy's stack (one central growl + four higher pitched screams) reserved for the chorus
- Solo: Morton's bluesy bends resolving into a Spreitzer-style melodic phrase
- Mix: Lamb of God's mid-gain / two-separable-guitars rule over DevilDriver's tight low end
- Avoid: making the verse riff melodic. Verse is rhythm-only. Melody is the chorus's job — that division is the whole design.
2. MONEY RIFF MELODEATH
Lamb of God ▸ DevilDriver — Lamb of God's architecture; DevilDriver's melody and swagger.
Hinge (what already agrees): Morton's phrygian-dominant leanings come via Marty Friedman. DevilDriver's harmonic-minor melodeath lines come from the same well. Harmonically these two already agree — they just disagree about form.
Friction (what fights): Lamb of God deliberately refuses verse-chorus writing; Morton has said as much, citing Meshuggah. DevilDriver is nothing but verse-chorus.
Resolution: Allow exactly one repeated element. Through-compose everything else, but let a single eight-bar harmonised melodeath hook return three times, the third time stacked over the money riff at the end. And here's the fusion point nobody has done: apply the two-guitar timing spread (one ahead, one behind) to tremolo-picked melodic lines instead of chugs. Two harmonised tremolo lines a few milliseconds apart is a genuinely unclaimed sound.
Recipe
- Chassis: Lamb of God — riff-first, non-repeating, 140–160 BPM, 4:30–5:00, sudden tempo shifts and half-time drops
- Riff writing: the subtraction method, but the removed sixteenths get filled by a tremolo-picked melodic line instead of silence
- Timing: the two-guitar spread applied to melodeath tremolo lines rather than palm-muted chugs — the signature of this hybrid
- Drums: Chris Adler vocabulary throughout — left-foot-led twin kicks, 32nd-note kick triplets closing phrases, six-over-four — but DevilDriver's blast-as-accelerator running into the hook
- Bass: riff-doubling pick attack, whole notes under the busiest guitar passages
- Vocals: Randy's clear-enunciated multi-register attack, with Dez's repeated-title-phrase discipline governing the hook only
- Solo: Morton — bent-note pentatonic, feel over speed, no sweeps
- Mix: mid-gain, no wall of saturation, midrange preserved
- Avoid: chorus-first writing. If it's catchy by bar eight you've built a DevilDriver song with Lamb of God paint. The hook has to be earned around 2:30.
3. SIREN GALLOP
DevilDriver ▸ Gojira — DevilDriver's engine, punctuated by Gojira's sirens and its silence.
Hinge (what already agrees): Both build riffs off a single low open string, and both use parallel intervals over it rather than full chords.
Friction (what fights): DevilDriver fills every sixteenth. Gojira's power lives in the sixteenths it leaves empty. These are opposite relationships to note density.
Resolution: Carve holes in the gallop and fill them with pick-scrape sirens instead of notes. Same perceived energy, half the note count. Then swap DevilDriver's harmonised thirds for Gojira's octaves — you keep the melodic movement but gain the percussive, alarm-like colour, because the octave has no third to sweeten it. This is the merge with the most immediate payoff.
Recipe
- Chassis: DevilDriver — 145–165 BPM, ~4:00, hook by 0:50
- Verse riff: the gallop with Gojira's staccato rests punched into it; every second cell answered by a descending pick-scrape squeal
- Lead: the melodeath top-line voiced in octaves, not thirds
- Drums: DevilDriver's relentless double kick, but every fill is Mario's — floor-tom and rack-tom tribal patterns instead of crash-and-snare rolls; one blast section played lighter, as texture
- Bass: hard pick attack, tube-screamer grit, dead centre in the mix
- Vocals: Dez's bark, with a Gojira-style gang choir doubling the hook an octave up
- Bridge: twenty seconds of dry clean harmonics over a single ostinato kick — the only breath in the song, and it makes the last chorus twice as heavy
- Mix: DevilDriver's polish on the drums, Gojira's dryness on the guitars, no reverb tail on the vocal
- Avoid: reverb. Put room on these guitars and the scrape stops reading as machinery and starts reading as a guitar solo.
4. TIDAL SWAGGER
Gojira ▸ DevilDriver — Gojira's architecture and air, hooked like a DevilDriver single.
Hinge (what already agrees): Both are groove-first bands whose riffs live on one low string, and both treat the tom-and-kick relationship as the primary rhythmic statement.
Friction (what fights): Gojira runs six or seven minutes and earns its release slowly. DevilDriver has to land a hook inside forty-five seconds. That's a structural incompatibility, not a stylistic one.
Resolution: Compress, don't average. Keep Gojira's clean/harmonic intro but cut it to twenty-five seconds. Let DevilDriver's chorus arrive at 1:10 and repeat properly. Then give Gojira the final ninety seconds back for an avalanche outro with no vocal hook at all. The song has a pop centre and two non-pop ends.
Recipe
- Chassis: Gojira — 105–125 BPM, octave voicings, staccato cells with rests, dry mid-forward guitar tone
- Injected: one DevilDriver-grade downbeat-locked chorus, repeated title phrase, harmonised top-line
- Drums: Mario's tribal toms, ghost notes, ride-tone groove and left-foot independence — but a D'Amond-style double-kick gallop under the chorus specifically, so the hook has forward lean
- Bass: centre-of-the-mix pick tone with TS7 grit
- Vocals: Joe's from-the-gut pitched scream with layered choirs, but the hook borrows Dez's syllabic percussive phrasing so it's actually shoutable
- Structure: 25s clean intro → machine verse → chorus at 1:10 → verse 2 with scrape sirens → mid-song calm (30s of harmonics + ostinato kick) → chorus → 90s avalanche outro
- Mix: dry, no vocal reverb, all gain from the amp, natural room on the drums
- Avoid: a fade-out. Gojira endings arrive — they don't dissolve. Hard stop or a single sustained scrape.
5. SUBTRACTED MACHINE
Lamb of God ▸ Gojira — The most natural of the six — two bands running the same trick from opposite ends.
Hinge (what already agrees): Lamb of God builds syncopation by removing sixteenths from a run. Gojira builds it by adding staccato hits to silence. Same grid, opposite direction. Layer them and you get a riff that reads as busy and empty at the same time.
Friction (what fights): Lamb of God's two guitars are deliberately a few milliseconds apart; Gojira's are locked in machine unison. You cannot have both in the same bar — the spread makes the staccato mushy, the lock makes the churn robotic.
Resolution: Alternate by section and make the switch audible. Staccato cells = locked unison (Gojira). The money riff = split spread (Lamb of God). The moment the guitars unlock is the moment the song opens up — treat it as the emotional event of the arrangement.
Recipe
- Chassis: Gojira — 100–130 BPM, 5:00–6:00, dry, octave voicings, rests as rhythm
- Riff grid: the subtraction method applied to Gojira's staccato cells; the removed notes replaced by pick scrapes rather than silence
- Drums — the real prize: Chris Adler's six-over-four ride-and-kick layer sitting on top of Mario's tribal tom ostinato. Two independent polymetric layers, ghost notes throughout, blasts as texture rather than force
- Bass: Campbell's whole-note weight under the complex passages, Labadie's centre-of-mix pick grit as the tone
- Vocals: Randy's clear enunciation and four-scream chorus stack, but phrased like Joe — short repeated syllabic cells rather than long lines
- Solo: none, or a single Morton bend held over an ostinato. This song is rhythm; a solo would be an apology for it.
- Mix: Lamb of God's mid-gain two-separable-guitars rule applied to Gojira's dry, reverb-free space
- Avoid: speed. Anything above ~135 BPM turns the two polymetric layers to mud — the whole point is that you can hear both.
6. OCTAVE DELTA
Gojira ▸ Lamb of God — Gojira's machine, played by a blues guitarist from Virginia.
Hinge (what already agrees): All three of these players treat restraint as strength — Joe cites Sabbath's use of space, Chris Adler cites Cobham's "find holes to not fill," Morton calls himself "a simple guitar player." Philosophically this is the closest pair of the six.
Friction (what fights): Gojira's vocabulary is deliberately non-bluesy: octaves, chromaticism, percussive attack, no bends. Morton's entire identity is the bend.
Resolution: Give the solo section outright to Lamb of God. Gojira's ostinato and tribal toms keep running underneath, unchanged; over the top, a bent-note pentatonic legato solo phrased deliberately behind the beat. The contrast between a machine floor and a human, slightly-late, blues-inflected lead is the entire reason to build this one — don't resolve it, amplify it.
Recipe
- Chassis: Gojira — 95–120 BPM, dry octave chug, rests as rhythm, ~5:30
- Injected: Morton's blues/pentatonic/phrygian-dominant lead vocabulary; Willie Adler's atonal self-invented dissonant chords used as the transition chords between sections
- Timing: keep the rhythm machine locked, but let the lead guitar sit deliberately behind the beat
- Drums: Mario's tribal toms and ghost notes played with Art Cruz's less-robotic, no-click feel — this pairing should breathe, not grid
- Bass: hard pick attack, dead centre, dropping to whole notes under the solo
- Vocals: Randy's clearly-enunciated bark up front with Joe's layered choir behind it — a legible lyric with cosmic backing
- Structure: machine verse → half-time stomp → Gojira calm → blues solo over ostinato → money riff → hard stop
- Mix: dry, mid-gain, no wall of saturation, natural drum room
- Avoid: gating the guitars too hard. The bends need sustain that the staccato riffs actively don't want — automate the gate off for the solo.
Part 3 — All Three At Once
THE THREE-BODY RIFF
All three at once, split by dimension rather than by section.
The failure mode of a three-way merge is a medley — eight bars of each, stapled together. The fix is to divide by dimension, not by time. Gojira owns the vertical: voicings, tone, and the space around the notes. Lamb of God owns the horizontal: where every note sits relative to the beat. DevilDriver owns the memorable: the hook, and only the hook. Nobody gets a section; everybody gets an axis. Every bar is all three bands at once.
Recipe
- Vertical (Gojira): hollow octave voicings, bone-dry mid-forward tone, all gain from the amp, rests as rhythm, scrape sirens filling the holes
- Horizontal (Lamb of God): the subtraction method for every riff; two guitars locked for staccato cells and split out of phase for the money riff; six-over-four ride layered on the tom ostinato
- Memorable (DevilDriver): one downbeat-locked chorus with a harmonised top-line and a repeated title phrase, arriving at 1:20 and returning twice
- Drums: Mario's tribal tom ostinato as the floor, Chris Adler's polymetric ride-and-kick on top, DevilDriver's gallop reserved strictly for the chorus
- Vocals: Randy's enunciation, Joe's chant-cell phrasing and choir layers, Dez's title-phrase discipline on the hook
- Tempo: 124 BPM — fast enough for the gallop to lean, slow enough that the two polymetric layers stay legible
- Length: 5:30. Dry clean intro (20s), machine verse, chorus at 1:20, scrape-punctuated verse, calm (30s), blues-bent solo over ostinato, chorus, avalanche outro, hard stop.
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