Author & Punisher

Zonal are the British duo of Justin Broadrick (Godflesh) and Kevin Martin (The Bug), a reactivation of their 1990s Techno Animal partnership trading in cavernous bass, cacophonous dub and ear-splitting drone. Their debut album Wrecked was released on Relapse Records on 25 October 2019, with Philadelphia poet-vocalist Moor Mother featured across its first six tracks. The record was mastered by Stefan Betke (Pole) and pairs industrial hip-hop menace with drone-metal weight.

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Thrones is the long-running solo project of American bassist Joe Preston, begun in 1994 and given to bass-heavy doom, avant-garde noise rock and experimental drone. Preston is a scene hub in his own right — a former member of Earth and the Melvins and a guest on Sunn O)))'s recordings — and Thrones channels that low-end lineage into one-man records like the Southern Lord compilation Day Late, Dollar Short (2005). The music pairs crushing riffs and heavily processed vocals with an eclectic, unpredictable sensibility.

Black Mayonnaise is the long-running one-man bedroom project of Mike Duncan from Akron, Ohio, active since August 1991. It blends heavily detuned, distorted doom/sludge guitar with drum-machine programming, tape loops and cut-up sonic manipulation into a lo-fi, ambient/psych-drone-inflected sound. Cited influences include old Godflesh, old Carcass, Butthole Surfers and Big Black; notable releases include TTSSATTSR (2004) and the retrospective compilation When You Get Caught Between the Moon and Boston Harbor (2011). (Verified spelling: the RYM scout note had a typo, 'Black Mayonaise' — the real band spells it 'Black Mayonnaise'.)

Greymachine is an experimental industrial noise project formed in 2006, built around Godflesh and Jesu frontman Justin Broadrick and Isis frontman Aaron Turner, with bassists Dave Cochrane (Head of David) and Diarmuid Dalton (Jesu). Broadrick described it as needing "something black to Jesu's white," pairing crushing beats, dissonant guitar, and harsh electronics. Their debut album Disconnected was produced by Broadrick and released on 4 August 2009 via Turner's label Hydra Head Records.

Ufomammut are an Italian power trio formed in 1999 in Tortona, dealing in a signature strain of psychedelic sludge that spans doom, stoner, sludge and drone metal. Their music favors lengthy songs built on repeated heavy riffs, droning vocals and a heavy use of synths and sound effects, staged live with synchronized psychedelic visuals by founders Poia and Urlo's Malleus art collective. Their most recent studio albums — including Fenice (2022) and Hidden (2024) — appear on Neurosis's Neurot Recordings.

Abishai is the lo-fi noise-rock vehicle of Torrance, California multi-instrumentalist Abishai Smith (aliases DJ Bathtub, Eden, Mizpah), who splatters feedback, drum machines, and kazoo across deliberately unpolished sludge, no wave, and noisecore excursions. The 43-track 'Raw and Legendary!!!' (2017) is a maximalist, comedic blowout of punk-metal bits, while the wider catalog under various aliases swings into death industrial, drone, power electronics, and ambient territory — DIY extremity closer to a bedroom noise scene than conventional metal songcraft.

Merzbow is the project of Japanese musician Masami Akita, the most prolific and definitive figure in harsh noise, working in distortion, feedback, synthesizers and homemade noisemakers since the late 1970s. His vast collaborative discography connects him deep into this atlas: he has recorded with Boris continuously since 1997 (Megatone, Gensho, 2R0I2P0), mixed the tracks "O)))Bow 1/2" on Sunn O)))'s Flight of the Behemoth (2002), and later performed live with Sunn O))) at Tokyo's Earthdom in 2007. His early-career work also included collaborations with KK Null.

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Nazoranai is an improvising power trio formed in 2011 by Keiji Haino (guitar, vocals, synth), Stephen O'Malley of Sunn O))) (bass) and Oren Ambarchi (drums), issuing its self-titled live debut on O'Malley's Ideologic Organ imprint in 2012. The name signals a stance against pure free improvisation, favoring a more deliberate approach as the trio moves from sparse, post-industrial landscapes into huge firestorms of riff and distortion. Its genesis traces to a 2006 introduction between Haino and O'Malley via Ambarchi.

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Ghostmass (大鬼眾) is a Beijing improvisation collective formed in 2021 from a shared passion for drone, doom, and extreme metal, filtered through harsh noise and free improvisation. Reviewer Michael Scharf (Outside Noise) describes their 2024 album 'Ghost Meditation' as evolving from chaotic noise toward a more structured, doom-metal-inspired sound, with anguished throat-singing-style vocals over grating feedback and power electronics. The lineup draws members from Beijing noise-rock scene acts Carsick Cars and Soviet Pop.

Hijokaidan are a foundational Japanese noise/free-improvisation group formed in 1979, the project of guitarist Jojo Hiroshige, who also runs Osaka's legendary Alchemy Records. With a lineup that has swelled from two to fourteen members, they pioneered Japanoise as an anti-music of chaotic feedback and notoriously destructive live performances. Regulars include Hiroshige's wife Junko and electronics player Toshiji Mikawa.