death metal:
Pavor - Furioso
Morbid Angel - Altars of Madness, Blessed Are the Sick, Covenant
The Amenta - Occasus
Axamenta - Ever-Arch-I-Tech-Ture
Suffocation - Pierced From Within
Symbyosis - Crisis
Death - Individual Thought Patterns
Augury - Concealed
Pantokrator - Aurum
Anata - The Conductor's Departure
Disavowed - Stagnated Existence
Bloodbath - Nightmares Made Flesh
Dismember - The God That Never Was
Demiurg - Breath of the Demiurg
Gorod - Leading Vision
Psycroptic - Symbols of Failure
Illogicist - The Insight Eye
Immolation - Unholy Cult
Martyr - Feeding the Abscess
Kronos - The Hellenic Terror
Lykathea Aflame - Elvenefris
Neglected Fields - Mephisto Lettonica, Splenetic
Nile - In Their Darkened Shrines, Ithyphallic
Vehemence - Helping the World to See, The Thoughts From Which They Hide
Wormed - Planisphaerium
Drottnar - Welterwerk
Behemoth - The Apostasy
Benighted - Insane Cephalic Production
black metal:
Deathspell Omega - Fas - Ite, Maledicti, in Ignem Aeternum; Si Monumentum Requires, Circumspice; Kénôse
Abigor - Fractal Possession, Opus IV
Amesoeurs - Ruines Humanes
Alcest - Souvenirs d'un autre monde
Mortifera - Vastiia Tenebrd Mortifera
Peste Noir - La Sanie des siècles - Panégyrique de la dégénérescence
Will of the Ancients - Will of the Ancients
Arcturus - Aspera Hiems Symfonia, La Masquerade Infernale
Belenos - Spicilège
Burzum - Hvis Lyset Tar Oss
Crimson Moonlight - The Covenant Progress, In Depths of Dreams Unconscious
Darkthrone - Transilvanian Hunger
Sanctifica - Spirit of Purity
Satyricon - Dark Medieval Times
Enslaved - Frost, Vikingligr Veldi
Lengsel - Solace
Pantheon I - Atrocity Divine, The Wanderer and His Shadow
Solefald - Red for Fire: An Icelandic Odessey: Part I, Black for Death: An Icelandic Odessy: Part II
The Legion - Revocation
Ulver - Bergtatt - Et Eeventyr i 5 Capitler, Nattens Madrigal - Aatte Hymne til Ulven i Manden
Ved Buens Ende - Written in Waters
Wolves in the Throne Room - Diadem of 12 Stars
The Firstborn - Unclenched Fists
Shining - V - Halmstad, II - Livets Ändhållplats
Ruins - Spun Forth As Dark Nets
melodeath:
Detonation - Emission Phase
Dark Tranquillity - Damage Done
Insomnium - The Day It All Came Down, Above the Weeping World
Kalmah - The Black Waltz
Mors Principium Est - Inhumanity
Non-Human Level - Non-Human Level
doom metal:
Ahab - The Call of the Wretched Sea
Evoken - Antithesis of Light, Quietus
Comatose Vigil - Not a Gleam of Hope
Daylight Dies - Dismantling Devotion
Novembers Doom - The Novella Reservoir, The Pale Haunt Departure
Swallow the Sun - Hope
Novembre - Materia
Esoteric (UK) - Subconscious Dissolution into the Continuum
Ataraxie - Slow Transcending Agony
Dominion Caligula - A New Era Rises
My Dying Bride - Turn Loose the Swans, The Angels and the Dark River
Isole - Forevermore
Katatonia - Dance of December Souls
Amorphis - The Karelian Isthmus, Tales From the Thousand Lakes
Doomsword - Let Battle Commence
Monolithe - Monolithe I, Monolithe II
Mythological Cold Towers - The Vanished Pantheon
Paramaecium - Exhumed of the Earth
Scythe - Decay
My Silent Wake - Shadow of Sorrow, The Anatomy of Melancholy
avant-garde metal:
Aberrant Vascular - Actaeon, Thyestes
Unexpect - Utopia, In a Flesh Aquarium
Maudlin of the Well - Leaving Your Body Map, Bath, My Fruit Psychobells...A Seed Combustible
progressive metal:
Pain of Salvation - Entropia, One Hour by the Concrete Lake, The Perfect Element I, Remedy Lane
Zero Hour - The Towers of Avarice, Specs of Pictures Burnt Beyond
Altera Enigma - Alteration
Andromeda - Extension of the Wish, Chimera
Vanden Plas - Christ.0
Orphaned Land - Mabool
heavy metal:
Rob Rock - Holy Hell
Nevermore - Dreaming Neon Black, This Godless Endeavor
Communic - Conspiracy In Mind, Waves of Visual Decay
Cloudscape - Crimson Skies
I'll cover some more genres later.
(and not just metal)