Buckethead

Flagman is a funk-metal/avant-metal band founded in 2015 in Orlando, Florida by bassist-vocalist Sam Stewart and guitarist Cody Singleton, later relocating to Seattle, Washington. Their sound centers on Stewart's Les Claypool-indebted slap bass and theatrical, character-voiced vocals, wearing clear influences from Primus, Mr. Bungle, System of a Down, and Faith No More across releases like 'Thank You, Come Again' (2022), 'Tastes Incredible' (2024), and the industrial-tinged EP 'Before The Blast' (2025). Press coverage has also compared their more recent, blunter material to 'funky Chat Pile.'

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Edge of Reality is a Nashville art-metal quintet whose 2019 album In Static packs jazz-inflected saxophone, carnival theatrics, and djent-adjacent riffing into a maximalist, constantly shifting progressive-metal frame. Reviewers place them alongside Native Construct, Thank You Scientist and Haken: dense, technically ambitious, occasionally overstuffed songwriting paired with a comedic, narrative-driven concept. Guitarist Joey Frevola also plays in UK prog act KYROS and LA's An Endless Sporadic, though neither is part of the EMMA atlas.

Puzzle Manplay in the dock

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Shaolin Death Squad are a theatrical progressive/avant-garde metal band from Denton, Texas, formed around 2001-2002, performing under kung-fu-themed stage personas. Their sound is dynamic prog metal with lead vocalist The White Swan frequently compared to Mike Patton, across releases including Intelligent Design (2006) and a 2024 self-titled record on Soman Records.

Tool is an American progressive metal band formed in Los Angeles in 1990, meshing dark underground metal with the ambition of art rock into multi-sectioned, layered songs built on odd time signatures and lengthy instrumental passages. The classic lineup pairs vocalist Maynard James Keenan and guitarist Adam Jones with drummer Danny Carey and, since 1995, bassist Justin Chancellor, who replaced founding bassist Paul D'Amour. Across albums from Undertow (1993) through Ænima, Lateralus, 10,000 Days, and Fear Inoculum (2019), the band cultivated an almost mythic reputation for cryptic, cerebral heaviness. Keenan splits his time with A Perfect Circle and Puscifer, while Carey moonlights in the fusion outfit Volto!.

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Oh. is the solo moniker of Greek multi-instrumentalist, composer, and director Olivia Hadjiioannou, who writes, performs, records, and mixes every part of her music herself. Her instrumental progressive-metal EP Metallia (self-released, July 2018) is a six-part concept work built from layered electric/acoustic guitars, violin, keyboards, and shifting time signatures; its 'Red Lion' music video won Best Music Video at multiple festivals, including the French Riviera Film Festival in Cannes.

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San Francisco shape-shifters who smuggled funk, hip-hop, synth-pop, thrash, lounge and film-score bombast into stadium-sized alternative metal, peaking commercially with The Real Thing (1989) and creatively with the gloriously perverse Angel Dust (1992). When Mike Patton was poached from Mr. Bungle in 1988, the band became the primary launchpad for his sprawling avant-garde universe — making Faith No More the closest thing this atlas has to a mainstream gateway drug. Few bands did more to convince metal that genre borders were optional.

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Haarlem sextet Schizoid Lloyd builds bombastic, theatrical prog-metal from Queen-style vocal-harmony bombast, Zappa-esque guitar knots, and a Mr. Bungle-indebted carnival-barker sense of humor, with reviewers also flagging touches of death-metal snarl (comparisons to Gorguts) and hip-hop-informed production quirks. Formed in 2007 and eventually signed to Blood Music in 2014, the band's catalog runs from two early EPs (Virus, Circus) to their sole full-length, The Last Note in God's Magnum Opus (2014).

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This node covers the bombastic pole of Devin Townsend's sprawling solo catalog: the Devin Townsend Project's louder releases (Addicted, Deconstruction, Epicloud, Transcendence), the Ziltoid the Omniscient rock opera and its sequel Z², and later records like Empath and PowerNerd. Deconstruction is critic-described as "progressive metal, avant-garde metal, industrial metal, and symphonic metal" — "the most deranged, complex and sonically overwhelming" work in his catalog — while Ziltoid is a self-voiced sci-fi rock-opera parody delivered with "Python-esque absurdity." Empath was built explicitly to cram every style in his catalog into one record.

Archangel is an avant-garde/electronic metal band from Venice, Italy, formed in 1994, notable for a groove-metal-rooted early sound that evolved into a symphonic, industrial, and electronically-inflected style incorporating elements as varied as saxophone passages within metal arrangements. Their 1996/97 debut 'In Tears the Angel Falls...' is often cited as a landmark avant-garde metal record and the band has been credited by some (including their own promotion) as the first metal act to tune entirely to the Golden Mean-derived 432 Hz standard. They continued releasing conceptually ambitious albums through 2010's 'The Story of My Immor(t)al Life', with core member Vam Kama Ocean Archangel (vocals/keyboards) present since formation.

Free Salamander Exhibit is an avant-rock band from Oakland, California, formed by former members of Sleepytime Gorilla Museum. Comprising roughly four-fifths of that group's lineup plus additional players, the band pursues an art-prog / rock-in-opposition sound built around an arsenal of homemade instruments alongside guitars, bass, and drums. Their debut album, Undestroyed, was released December 13, 2016 on the Web of Mimicry label.