Technical death metal and progressive death metal are subgenres of Death Metal that infuse the (in)famous assaulting musical brutality of the genre with the technicality and elaborate musical structures of Progressive Metal. The songs tend to be very complex, and often include influences from other genres, such as jazz or classical music; the result is a highly cerebral musical style that rewards close and repeated listening, without surrendering the unrelenting musical aggression Death Metal is known for.
There is, or can be, a difference between "technical death metal" and "progressive death metal", though many artists fit both descriptions or oscillate between. While both are undeniably musically sophisticated and extremely brutal, tech death bands tend to come across as much more intense, often performing their complex compositions with blinding speed and pounding aggression, or in a manner that emphasises the virtuosic skill and precision of the performances. Technical death metal can thus sometimes have a somewhat machine-like, "triggered" sound, with instruments starting and stopping suddenly or irregularly, playing precisely calculated riffs or patterns which shift frequently and sometimes seemingly at random, only to form part of a larger motif or series of progressions which become apparent upon close listening.
"Progressive death metal", on the other hand, tempers the conventional "death metal" repertoire of elements with jazzy breakdowns, melodic refrains, unusual (for death metal) instrumentation and vocalisation, or slower tempi, and generally draws liberally from diverse musical traditions to create elaborate, multilayered sounds that evolve across lengthy and eclectic albums. Progressive death metal thus tends to be more diverse or less identical-sounding, in that while tech death bands commonly draw inspiration from other musical forms, progressive death metal bands often do so multiply within a single song or album, and though demonstrably capable of the sort of chops-intensive wizardry found in tech death, prog death bands often forego these displays in favour of allowing their compositions time to breathe via greater repetition, subtler permutation, and more extensive progression.
"Avant-tech" is more of a blanket label for acts that eschew conventional tech tropes, which usually translates to either a focus on dissonance or unconventional riffing approaches. Many acts that fit under this mantle have some overlap with technical or avant-garde black metal and sometimes mathcore as well, and the rule is generally that if the technicality and unconventional structures are used as tools to create specific musical textures, rather than as central features of the music, it's more likely than not avant-tech.
Thus the distinction could be argued to be that technical death metal prides itself on instrumental skill and experimentation, while progressive death metal prides itself on compositional exploration and originality, and avant focuses on technicality and complicated structures as a way of creating an atmosphere. A quicker way to explain the difference to a metalhead would be this:
- Progressive: Opeth.
- Technical: Decapitated.
- Avant: Ulcerate.
Deserving special attention are Death, not only for inventing Death Metal as a whole, but for subsequently kickstarting both prog and tech with their 1991 album Human, which stood head-and-shoulders above contemporaneous releases in terms of the proficiency and originality of its songcraft and production, with seriously insightful lyrics accompanying inventive chords through inspired and memorable songwriting. It and all subsequent Death albums are considered standard-setting classics, with Humannote and Individual Thought Patternsnote cleaving more closely to technical death metal and Symbolicnote and The Sound of Perseverancenote closer to progressive death metal to the contemporary ear.
Further bands that are generally classified as technical/progressive death metal (exact subgenre noted by their name) include:
- Abhorrent (tech)
- Abiotic (Casuistry, Symbiosis was technical deathcore)
- Abysmal Dawn (tech)
- Achokarlos (prog, a very Genre-Busting example; notably a solo project)
- Ad Nauseam (avant-tech)
- Aenigmatum (both)
- Aethereus (tech)
- Afterbirth (brutal tech and a potential Ur-Example of brutal death, also Avant-Garde Metal)
- The Agonist (melodic prog on Prisoners)
- Akercocke (prog, although they are a slight case of Genre-Busting and could also be classified as blackened death or progressive black)
- Alarum (prog, with some slight Genre-Busting tendencies)
- Alchemist (prog, mixed with Psychedelic Rock of all things)
- Alkaloid (prog)
- Allegaeon (melodic tech)
- Alluvial (prog/dissonant tech in general, borders on deathcore on Sarcoma)
- Alterbeast (tech)
- Alustrium (both)
- Anomalous (prog)
- Aparia (tech)
- Arcane Existence (melodic tech/prog, also Gothic Metal)
- Archspire (brutal tech)
- Arkaik (brutal tech on Reflections, both on Metamorphignition)
- Aronious (tech)
- Arsis (melodic tech; also prog on A Diamond for Disease)
- Artificial Brain (melodic dissonant tech)
- Atheist (both, and the Ur-Example of technical death if you believe that Hellwitch was more thrash than death)
- Atrae Bilis (avant-tech)
- Atvm (prog)
- Augury (prog)
- Babylon Sad (prog/avant-garde)
- Barren Earth (prog)
- Baring Teeth (avant-garde tech in the vein of Gorguts' Obscura, also mathcore)
- Becoming The Archetype (prog)
- Bedsore (prog, also some psychedelic elements)
- Behold ... The Arctopus (both)
- Beneath the Massacre (tech mixed with Deathcore)
- Between the Buried and Me (prog; debatably also tech; also Mathcore, at least on their early releases, although there is little -core influence left in most of their albums after Alaska)
- Beyond Creation (both)
- Black Crown Initiate (prog)
- Blade of Horus (tech, some slam and deathcore elements)
- Blood Incantation (both on Starspawn, prog on Hidden History of the Human Race; earlier work is more old-school)
- Blotted Science (both)
- Bookakee (tech)
- Born of Osiris (prog mixed with Deathcore and Djent; their post-The Discovery material is metalcore)
- Brain Drill (tech)
- Broken Hope (prog on Loathing, tech on Grotesque Blessings)
- Brutality (tech)
- Buried Future
- Capharnaum (tech)
- Cathexis (tech with prog influences)
- Cattle Decapitation (both, mixed with deathgrind)
- Cephalic Carnage (both and deathgrind)
- Cerebric Turmoil (tech, some trappings of Avant-Garde Metal)
- Chapel of Disease (prog)
- The Chasm (prog; latest material is entirely instrumental)
- Coprofago (tech)
- Coexistence (both)
- Cognitive (tech)
- Conforza (prog, later material only)
- Continuum (brutal tech)
- The Contortionist (prog mixed with Deathcore, though the latest album is just straight-up Progressive Metal with very little influence from death metal or deathcore)
- Contrarian (prog)
- Convulsing (dissonant tech with strong black metal influence)
- Crypt of Kerberos (prog)
- Cryptopsy (brutal tech, except for The Unspoken King, which was Deathcore, and also incredibly poorly received. Once Was Not could debatably be considered prog as well.)
- Cytotoxin (brutal tech, borders on technical deathcore)
- Cult of Lilith (tech)
- Cynic (prog; debatably tech; earliest material was technical death/thrash)
- Darkthrone (bet you're surprised to see them here, but their first album, Soulside Journey, qualified as tech before their Genre Shift to Black Metal)
- Dead World Reclamation (melodic tech)
- Decapitated (tech; debatably also prog on Carnival Is Forever)
- Deceptionist (tech, mixed with Industrial Metal)
- Decrepit Birth (tech on …And Time Begins; both on Diminishing Between Worlds and Polarity)
- Deeds of Flesh (tech, at least in their recent work)
- Defeated Sanity (slam and brutal tech; also prog on Dharmata)
- Deivos (tech)
- Demilich (avant-tech)
- Demon King (melodic tech, also blackened death metal)
- Desecravity (brutal tech)
- Devil's Reef (tech)
- Devolved (tech)
- Dim Mak (tech)
- Dir en grey (Dum spiro spero saw the band incorporate tech elements with the prog and Avant-Garde Metal sound from their previous album Uroboros)
- Disarmonia Mundi (Melodic Prog)
- Disillusion (melodic/symphonic prog)
- Divine Disorder (Symphonic/Orchestral Prog)
- Dominion (tech)
- Dying Fetus (brutal tech)
- Dysmorphic (tech)
- Eaten By Sharks
- Edge of Sanity (melodic prog)
- Emeth (brutal tech)
- Enfold Darkness (melodic tech)
- Entheos (tech, also djent on Primal, also prog on Dark Future)
- Equipoise (tech)
- Eternal Grey (both)
- Exist (prog)
- Exocrine (tech)
- Extol (blackened prog)
- The Faceless (tech on Planetary Duality, prog on Autotheism)
- Fallujah (both; early material was Deathcore)
- First Fragment (tech)
- Fleshgod Apocalypse (brutal tech on Oracles and Mafia)
- Flub (tech)
- Gigan (prog)
- Gojira (prog, mixed with Groove Metal, up until L'Enfant Sauvage. They kept the prog and groove aspects while moving away from death metal in Magma.)
- Gorguts (Trope Codifier for dissonant tech; also avant-garde and prog, with the latter being debatable from Obscura onwards and inarguable from Colored Sands onwards)
- Gorod (both)
- Hannes Grossmann (prog)
- Hath (prog, also blackened death, a bit of a Genre-Busting example)
- Hellwitch (tech, mixed with thrash, possibly an Ur-Example)
- Henker (brutal tech)
- Horrendous (prog on Ecdysis and Idol)
- Hour of Penance (brutal tech)
- Human Remains (also deathgrind)
- Inanimate Existence (prog)
- Inanna (prog)
- Inferi (tech, mixed with melodic death)
- Infant Annihilator (technical deathcore) note
- Ingurgitating Oblivion (dissonant tech)
- Iniquitous Deeds (brutal tech)
- Inoculation (tech)
- In-Quest (prog; notable for featuring Sven de Caluwe on vocals for two releases)
- Internal Suffering (brutal tech)
- Intonate (dissonant tech)
- Irreversible Mechanism (both)
- Job for a Cowboy (tech on Demonocracy, prog on Sun Eater)
- Kardashev (prog)
- Kataklysm (brutal tech, first two albums only; became straightforward brutal death after Sylvain House's departure and converted to groove-tinged melodic death on In the Arms of Devastation)
- Lantern (old-school/avant-tech)
- Lascaille's Shroud (prog)
- Last Sacrament (tech; also notable as they use microtonal scales
for their music)
- Lecherous Nocturne (blackened tech)
- Lethargy (tech, also mathcore)
- A Loathing Requiem (tech, the solo project of Malcolm Pugh of Inferi)
- Logistic Slaughter (brutal tech)
- Lykathea Aflame (both)
- Malignancy (brutal tech)
- Martyr (tech)
- maudlin of the Well (avant-garde prog)
- Mephistopheles (tech)
- Meshuggah (tech, thrash, in some cases, grindcore; also prog on I and Catch 33)
- Misanthrope (prog, occasionally tech)
- Miscreance (tech, also Thrash Metal)
- Mithras (both; especially prog on Worlds Beyond the Veil and Behind the Shadows Lie Madness)
- Mitochondrion (prog)
- Monotheist (prog)
- Monstrosity (tech)
- Morbus Chron (prog on Sweven)
- Mordant Rapture (melodic tech)
- Mortal Decay (brutal tech)
- Christian Muenzner (tech)
- Natron (Brutal Tech)
- Necrophagist (tech, debatably also prog)
- Ne Obliviscaris (prog, mixed with a wide variety of other styles including Black Metal; they lean most heavily towards progressive death on Urn)
- Nero di Marte (avant-prog)
- Neuraxis (both)
- Neurogenic (brutal tech)
- Nile (brutal tech)
- Nocturnus (both; possible Trope Maker with their 1990 debut The Key and definitely an Ur-Example either way)
- Node (tech)
- Novembers Doom (prog, starting with Aphotic, though they have experimented with it before; mixed with Death/Doom and Melodic Death Metal)
- Nylithia (tech, also thrash)
- Obscura (prog)
- Obsidious (prog)
- Odious Mortem (tech)
- Ominous Ruin (brutal tech)
- Omnihility (brutal tech)
- Opeth (prog; switched to straight up Progressive Rock on Heritage and never looked back)
- 1999 - Still Life
- 2001 - Blackwater Park
- 2002/03 - Deliverance & Damnation
- Ophidian I (tech)
- Origin (brutal tech)
- Orphaned Land (prog)
- Pathogenic (tech, also djent; only applies to their later material)
- Pan.Thy.Monium (prog)
- Pavor (tech, also Avant-Garde Metal)
- Persefone (Symphonic Prog/Tech)
- Pestilence (tech)
- Portal (dissonant tech)
- Proliferation (prog)
- Psycroptic (tech)
- Pyrrhon (dissonant tech, also mathcore)
- Quo Vadis (both)
- The Red Chord (tech, crossing over with Deathcore and Deathgrind)
- Replacire (prog, mixed with Thrash Metal)
- Revocation (tech, mixed with Thrash Metal up until Teratogenesis; occasionally prog)
- Rings of Saturn (tech, mixed with deathcore)
- Rivers of Nihil (prog)
- Sadist (prog)
- Sarcófago (possible co-Trope Maker for tech on The Laws of Scourge, which is their only album that qualifies)
- Sarcolytic (brutal tech)
- Sculptured (prog)
- The Senseless (tech)
- Serdce (prog)
- Serocs (tech)
- Severed Savior (brutal tech on Servile Insurrection)
- Sin (tech)
- Slaughterbox (brutal tech)
- Slugdge (prog)
- Son of Aurelius (The Farthest Reaches, melodic tech)
- Sophicide (tech)
- Soreption (tech)
- Spawn of Possession (tech)
- Spectrum of Delusion (tech)
- Stargazer (prog)
- Suffocation (Trope Codifier for tech; also codified brutal, and probably the reason why a lot bands combine the two)
- The Summoned (prog on later material)
- Sutrah (prog)
- Symbolik (melodic tech)
- Thaetas (brutal/avant-tech)
- Theory in Practice (tech)
- Tiamat (prog, on Wildhoney only)
- Timeghoul (both)
- !T.O.O.H.! (both, and also have a lot of Grindcore influence)
- Trigger The Bloodshed (tech; first album was Deathcore)
- Ulcerate (dissonant tech; debatably prog, especially on The Destroyers of All)
- Unfathomable Ruination (brutal tech)
- Unflesh (melodic tech, also blackened death metal)
- Unhuman (prog)
- Unmoored (prog, first album is death 'n' roll - best known as Christian Alvestam's first band)
- Vale of Pnath (melodic tech)
- Veil Of Maya (tech mixed with Deathcore and Djent, later material is closer to metalcore)
- Viraemia (brutal tech)
- Virulent Depravity (tech)
- Virvum (tech)
- VoidCeremony (old-school/avant-tech)
- Voraath (prog)
- Warforged (prog, also blackened death)
- Wintersun (prog; also Melodic Death Metal)
- Wormed (brutal tech with deathgrind influence; debatably prog-ish on their latest release, Exodromos)
- Wormhole (tech, also slam)
- Wretched (tech, also deathcore)
- Your Chance To Die (melodic tech)
- Zealotry (both)
- The Zenith Passage (tech)
- Zero Dawn (melodic tech)
Tropes that apply to prog/tech death:
- A God Am I: Tech death acts, especially those who write fantasy-based lyrics, are particularly infamous for invoking this trope. The lyrical implementation can range from something as relatively tame as having control over the future to a straight-up insatiable desire to destroy everyone and everything. Often written in Purple Prose for maximum effect.
- Dumb and Drummer: Strongly averted here. Hell, even the more blast-happy drummers still have to have truly incredible stamina, dexterity, and senses of time to be able to pull off what they do.
- Early-Installment Weirdness: Many early acts had strange and quirky styles that have never really been repeated since:
- Atheist mixed death/thrash (particularly Hellwitch and earlier Sadus) with prominent jazz fusion, progressive rock, funk, Latin jazz, and son cubano elements, coupled with extremely prominent and creative basslines from Lead Bassist Roger Patterson.
- Nocturnus mixed American death/thrash speed and aggression with prominent technical thrash metal elements, highly technical but relatively chaotic and unstructured leadwork, and extremely prominent keyboard lines that were a central thread in the music.
- Mortal Decay mixed very early brutal death metal (largely Suffocation, Internal Bleeding, Pyrexia, and Broken Hope) with extremely prominent tech and prog-thrash riffing and melodic ideas, as well as subtle but noticeable jazz fusion elements.
- Afterbirth took Mortal Decay's early style and filtered it through a Genre-Busting mix of post-hardcore, shoegaze, space rock, progressive rock, ambient, and even hip-hop (as some of their ambient elements and melodic ideas had more than a little in common with the work of producers like Prince Paul and Ali Shaheed Muhammad).
- Sadist took the keyboard-centric approach of Nocturnus, slowed it down and relaxed the pace, increased the role of the keyboards even further (with more than a little influence from 80s Italian film soundtracks), and featured more melodic and jazz fusion-inspired leadwork.
- Epic Rocking - Frequently, especially on the prog side of the family.
- Fandom Rivalry: In a case of Snobs Vs Slobs, tech fans tend to look down upon slam fans and vice versa. The former tend to see slam fans as a bunch of would-be former deathcore kids in denial with a reactionary hatred of the genre that they still frequently listen to, who will blindly lap up anything with an unreadable logo no matter how shitty it is. Slam fans, meanwhile, see tech fans as a bunch of annoying meme-spammers who are easily impressed by anything that shamelessly rips off Necrophagist or Spawn of Possession, and who will blindly lap up anything from The Artisan Era and the bands associated with that circle as long as it's packaged well and has enough memes attached.
- Genre-Busting - Mostly prog death, which often aims to produce truly excellent death metal by combining it with elements of just about every other excellent form of music in existence.
- Genre Roulette: Frequent among prog death bands; a trend popularized by Opeth.
- Lead Bassist: Lots and lots of Type A examples, with Steve DiGiorgio, Mike Flores (Origin), Jacob Schmidt (Defeated Sanity), Olivier Pinard (Cryptopsy, Neuraxis), Nick Schendzielos (Cephalic Carnage, Job for a Cowboy), Dominic "Forest" Lapointe (Augury, First Fragment, ex-Beyond Creation), Jared Smith (Archspire), Linus Klausenitzer (Obscura, Alkaloid), Hugo Doyon-Karout (Beyond Creation, Brought by Pain), Nick Shaw (Black Crown Initiate), Andrew Kim (Inferi), and Jeff Hughell being some of the individuals who stand out even amongst them.
- Though it may be argued that within the generic context these individuals and others ought to count as Type D examples, rather than strictly Type A. Because both prog and tech death place substantial emphasis on writing interesting and challenging parts for all instruments, bassists in the genre are, moreso than in other rock or metal genres, considered to be integral if not central to the band's sound, and thus cut far larger figures within the consciousness of fans, and are simply unlikely to be overlooked, especially if they are particularly skilled.
- The abundance and popularity of bass solos, or dueling solos in which the bassist and the lead guitarist trade off against one another, probably doesn't hurt either.
- Though it may be argued that within the generic context these individuals and others ought to count as Type D examples, rather than strictly Type A. Because both prog and tech death place substantial emphasis on writing interesting and challenging parts for all instruments, bassists in the genre are, moreso than in other rock or metal genres, considered to be integral if not central to the band's sound, and thus cut far larger figures within the consciousness of fans, and are simply unlikely to be overlooked, especially if they are particularly skilled.
- Lead Drummer: Like bassists, there are lots and lots of drummers in the genre who are renowned for their technical ability, namely George Kollias (Nile), John Longstreth (Origin, Dim Mak, ex-Gorguts), Hannes Grossmann (Alkaloid, ex-Necrophagist, ex-Obscura), Flo Mounier (Cryptopsy), Lille Gruber (Defeated Sanity), and Jamie Saint Merat (Ulcerate).
- Lyrical Dissonance - Despite being death metal, lyrics range about evenly from the traditional Deathy Gorn to philosophy, social commentary, speculative fiction, spirituality or the occult, and even comedy.
- Albeit the lyrics are almost always several shades darker in tone than the darkest darkness found in other musical genres.
- Purple Prose: Certain bands that have very abstract and complicated lyrics tend to do this.
- Soprano and Gravel: Clean vocals have become increasingly common in progressive acts as of the 2010s. Opeth, Cynic, and Extol pioneered this originally, while Obscura, Gojira, and The Faceless codified its modern usage. Other modern acts that regularly utilize this dynamic include Black Crown Initiate, Rivers of Nihil (circa Where Owls Know My Name), Alkaloid, Ne Obliviscaris, and Revocation.
- Surreal Horror: The more experimental bands can invoke this in listeners, with their extensive use of dissonance, disorienting time signatures, and disturbing lyrics.
- Symphonic Metal: Symphonic elements are a common part of the genre from the 2010s onward, particularly in the more melodic acts. Much of this can be owed to the steadily increasing influence of Dimmu Borgir, Cradle of Filth, Fleshgod Apocalypse, and similar acts on the genre, and the sound of the archetypical 2010s melodic/symphonic tech act was largely codified by Inferi and popularized by The Artisan Era, who signed many similar acts.
- Trope Maker and Ur-Example - Atheist, which began life as an extremely technical offshoot of Thrash Metal and grew in heaviness for the second album. While less influential than Atheist, Nocturnus and Hellwitch are also commonly cited when the question of "who came first?" comes up.
- Trope Codifier:
- The genre as a whole: Death and Atheist (originally), Necrophagist, The Faceless, and Obscura (modern acts).
- Brutal tech: Suffocation, Nile, and Origin
- Melodic tech: Arsis, Neuraxis, and Anata
- Prog: Cynic and Opeth
- Avant/dissonant tech: Gorguts and Human Remains
- Uncommon Time - Fuck yes
.
Tech songs (including all mentioned styles):
- Afterbirth - Spiritually Transmitted Disease
(avant-tech)
- Alkaloid - From a Hadron Machinist
(prog)
- Allegaeon - Of Mind and Matrix
(melodic tech)
- Alterbeast - Flesh Bound Text
(melodic tech)
- Anata - Downward Spiral into Madness
(melodic tech)
- Archspire - Human Murmuration
(brutal tech)
- Arkaik - Malignant Ignorance
(brutal tech)
- Arsis - The Face of My Innocence
(melodic tech)
- Atheist - Mother Man
(old-school tech)
- Atrocity - Deep in Your Subconscious
(old-school tech)
- Augury - Sovereigns Unknown
(prog)
- Between the Buried and Me - The Double Helix of Extinction
(prog)
- Black Crown Initiate - Matriarch
(prog)
- Blood Incantation - The Giza Power Plant
(prog)
- Cryptopsy - Slit Your Guts
(brutal tech)
- Cynic - How Could I
(prog)
- Cytotoxin - Ionosphere
(brutal tech)
- Death - Trapped in a Corner
(old-school tech)
- Decrepit Birth - Symbiosis
(modern tech)
- Defeated Sanity - Consumed by Repugnance
(brutal tech)
- Demilich - When the Sun Drank the Weight of Water
(avant-tech)
- Dir en grey - Different Sense
(prog)
- Disincarnate - Stench of Paradise Burning
(old-school tech)
- The Faceless - Xenochrist
(modern tech)
- First Fragment - Gula
(modern tech)
- Gigan - Beneath the Sea of Tranquility
(avant-tech)
- Gojira - Flying Whales
(prog)
- Gorguts - Earthly Love
(avant-tech)
- Gorod - Bekhten's Curse
(melodic tech)
- Hellwitch - Purveyor of Fear
(old-school tech)
- Human Remains - Weeding Out the Thorns
(avant-tech)
- Inferi - A Betrayal Unforetold
(melodic tech)
- Job for a Cowboy - Children of Deceit
(modern tech)
- Martyr - Virtual Emotions
(old-school tech)
- Monotheist - Desolate, It Mourns Before Me
(prog)
- Monstrosity - Suffering to the Conquered
(old-school tech)
- Necrophagist - Only Ash Remains
(modern tech)
- Nile - Execration Text
(brutal tech)
- Nocturnus - Droid Sector
(old-school tech)
- Obscura - The Anticosmic Overload
(modern tech)
- Ominous Ruin - Ritual
(brutal tech)
- Opeth - The Drapery Falls
(prog)
- Origin - The Aftermath
(brutal tech)
- Pyrrhon - The Happy Victim's Creed
(avant-tech)
- Revocation - Copernican Heresy
(melodic tech)
- Rivers of Nihil - Circles in the Sky
(prog)
- Severed Savior - Question
(brutal tech)
- Spawn of Possession - Church of Deviance
(brutal tech)
- Ulcerate - Abrogation
(avant-tech)
- Vale of Pnath - Unburied
(melodic tech)
- Virvum - Ad Rigorem
(modern tech)
- Wormed - Tunnel of Ions
(avant-tech)
- Your Chance to Die - Omega
(melodic tech)
- The Zenith Passage - Deus Deceptor
(modern tech)