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Arkheth is the long-running (2001-present) Australian project of Tyrone 'Tyraenos' Kostitch, now a one-man vehicle for symphonic-turned-experimental black metal after growing out of the Orange, NSW band Eternal Dark. Its 2018 high point, 12 Winter Moons Comes the Witches Brew, folds saxophonist Glen Wholohan's honking, Contortions-indebted jazz lines into black-metal songwriting critics have dubbed 'an inverted Shining' -- black metal wading into jazz rather than the reverse. It is one of the more distinctive jazz/black-metal hybrids operating outside the Norwegian axis the label comparison implies.

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Inquisitor were a Vilnius, Lithuania avant-garde black metal band active 2002-2016, best known for the concept album The Quantum Theory of Id (2010), a four-part metaphysical narrative pairing harsh black-metal riffing with jazzy/spooky acoustic piano and disjointed, technical song structures. A 2014 follow-up, Clinamen | Episteme, continued in the same 'progressive, complex and extremely dynamic blackened metal' vein. They are a niche entry in the Lithuanian black metal underground with no documented ties to other EMMA atlas acts.

Deathspell Omega is an anonymous French black metal collective, formed in 1998, that turned from orthodox raw black metal into one of the most cerebral, theologically-preoccupied acts of the 'dissonant' avant-black wave. From Si Monumentum Requires, Circumspice (2004) and Kénôse (2005) onward their music folds jazz-derived chord voicings, math-rock complexity and dark-ambient/choral interludes into blast-driven black metal. The band never confirms its lineup, so personnel details are limited to widely-reported names.

Kexelür is a Santiago, Chile trio formed around 2021 playing atmospheric, dissonant, and psychedelic black metal built around free improvisation. Their releases are billed as largely improvised live sessions, with reviewers noting 'jazz fusion inspired soloing/leads' layered over the black metal foundation. The band communicates only through single-letter pseudonyms (Λ., V., J.), with Λ. also running the solo project Fatalys (not in the E.M.M.A. atlas).

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Nefarious Mash is the solo vehicle of Grenoble-based contemporary-classical composer Eddy Jaber, founded in late 2021 to bridge concert-hall composition and extreme metal. Debut LP In Memory of Your Hopes (2022, reissued 2024 on Wormholedeath) builds dense 'harmonic cathedrals' of dissonant black metal, threading in jazz-derived harmony, polyrhythmic surprises and theatrically flexible vocal delivery across nine long-form tracks.

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Morpheus Tales is a Greek experimental/progressive black metal project from Thessaloniki, built around core member Paris (guitars, drums/keys programming) with Georgios P on guitars and Lee on vocals for their most recent work. Their music is billed as 'avantgarde post black metal' that's psychedelic, strange and concept-driven — 2014's Secular Noir is a 'cosmic noir tale of greed and lust,' while 2017's II is an 8-chapter concept record about hypocrisy, false prophets and the denial of reality, featuring a guest saxophone part from Orestis Exidaris. The project appears self-released/unsigned, distributing exclusively through its own Bandcamp.

Goatchrist is the solo vehicle of Leeds, UK musician Jacob Guilherme, formed in 2014, an explicitly occult project layering piano, orchestral textures, and jazz-inflected instrumental passages over an Orthodox black-metal core.

Altari is an Icelandic black metal band whose debut album Kröflueldar, released via Svart Records in April 2023, took roughly nine years to complete. The record folds clean, melodic guitar leads and influences from Blue Öyster Cult, Killing Joke and Interpol into a black metal foundation, co-produced by Stephen Lockhart (aka Wann), a central engineer/producer figure in Reykjavík's black metal scene.

Alkuharmonian Kantaja are an avant-garde black metal quartet from Oulu, Finland, founded in 2020 by J. Usurper with S. Redeemer (drums) and Swiss-based D. Harbinger (keys). Their I, Voidhanger-released debut Shadowy Peripherals (2021) draws critical comparisons to 1990s Norwegian avant-prog black metal acts like Ved Buens Ende, splicing jazz, folk, and classical fragments into spitfire riffing and clean-toned synth melancholy.

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Ætheria Conscientia is a progressive black metal quintet from Nantes, France, formed in 2016, known for using saxophone as a core instrumental voice rather than an occasional flourish. Across three albums — 'Tales From Hydhradh' (2018), 'Corrupted Pillars of Vanity' (2021), and 'The Blossoming' (2024) — the band pursues a continuing science-fiction concept about humanity fleeing a ruined Earth, blending black metal with progressive rock, jazz, ambient, and psychedelic textures. Critics place them at the crossroads of Oranssi Pazuzu, Mastodon, and Enslaved.

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