Felix Martin

The Pitts Minnemann Project is an instrumental progressive-rock/jazz-fusion collaboration between keyboardist Jimmy Pitts (Scholomance) and drummer Marco Minnemann, joined by rotating guest virtuosi on guitar, bass, saxophone, and violin. They released two albums, '2 L 8 2 B Normal' (2014) and 'The Psychic Planetarium' (2016), both blending heavy fusion with progressive-metal complexity.

Volto! is an American jazz-fusion jam band based in Los Angeles, best known as the side project of Tool drummer Danny Carey. Formed in the early 2000s from improvised sessions with guitarist John Ziegler and bassist Lance Morrison at a San Fernando Valley jazz club, the group spent nearly a decade as a live-only act before releasing its debut album Incitare (2013) on Fantasy Records. Their heady, genre-spinning instrumental sound bridges King Crimson, Liquid Tension Experiment, and 1970s fusion, foregrounding the improvisation that Carey has cited as his main motivation for the project.

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Blind Idiot God is an instrumental trio formed in 1982 in St. Louis, fusing noise rock, dub, funk, free jazz and metal; Greg Ginn signed them to SST Records after hearing their demo. Their 1988 album Undertow was produced by Bill Laswell and featured saxophonist John Zorn, and the full band performed on Laswell's Praxis album Sacrifist (1993) alongside Buckethead, Bootsy Collins and Yamatsuka Eye. Khanate drummer Tim Wyskida joined in 2001 and remains the band's drummer through their 2015 reunion album Before Ever After.

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Deli Creeps is guitarist Buckethead's formative avant-garde/funk-metal band, formed in Claremont/San Francisco in the early 1990s and built around Maximum Bob's manic vocals and Buckethead's already-virtuosic, genre-hopping lead guitar. Their sole album, Dawn of the Deli Creeps (2005), compiles re-recorded demo-era material and functions as an origin document for Buckethead's later solo vocabulary — several of its riffs and songs were repurposed on his solo records. Mike Patton has praised the band, and it sits at the root of the Bay Area Buckethead/Praxis/Primus-adjacent avant-metal cluster.

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Bay Area funk-metal vehicle formed in 1993 by Primus drummer Tim 'Herb' Alexander during a break from that band, pairing his drums (and eventually lead vocals) with Tom Butler's guitar and Ian Varriale's Chapman Stick/Warr guitar. Two albums, Blacktongue (1994) and Motivator (1999, Rinse-N-Repent Records), trade on the same proggy, slap-and-stick alt-metal chops Alexander brought to Primus. A minor node whose interest for the atlas is almost entirely its direct Primus lineage rather than any genre-scrambling ambition of its own.

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Cartel Carnage is a French quintet of jazz-scene musicians (guitar, bass, trumpet, tenor sax, drums) fusing free jazz, heavy metal, pop and progressive rock into what reviewers called a 'musical UFO.' Their sound and stated influences — Naked City, Fantomas, Mr. Bungle, Zorn, Ornette Coleman, alongside Meshuggah and Slayer — place them squarely in genre-collision RIO/avant-prog territory, though no sourced personnel or label ties connect them to the existing atlas. Their sole full-length, Incorporated, was released in 2012 on Great Winds/Musea Records.

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Upsilon Acrux is an American avant-progressive / math rock band founded in 1998 by guitarist Paul Lai, who started the group near San Diego before relocating to Los Angeles. Built on interlocking twin-guitar counterpoint, odd meters and a frequently rotating cast of players around Lai as the sole constant, they trade in a dense, athletic, largely instrumental 'brutal prog' indebted to King Crimson and Japanese noise-rock forebears like Ruins. They released their most widely heard albums, Galapagos Momentum (2007) and Radian Futura (2009), on the Maryland avant-rock label Cuneiform Records.

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Coinmonster is a Pennsylvania/Ohio-border progressive-metal outfit (New Castle, PA, formed 1990) built around guitarist-vocalist Jon Reider's fusion chops — self-described 'avant-garde jazzcore' that threads Holdsworth/Herring-style jazz-rock guitar through off-kilter time signatures, with detours into banjo-and-brushes Americana on tracks like 'Wake Up Tilton.' Largely a private-press/regional act (The Schematic, 2000; Tilton Johnson, 2002) rather than a scene band, it's an outlier RYM-tagged avant-garde-metal entry with no documented ties to the wider atlas.

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Los Angeles metal-jazz quartet fronted by trumpeter Dan Rosenboom and guitarist Jake Vossler, pairing lyrical, Miles-Davis-lineage trumpet against Vossler's distorted, noise-inflected guitar over double bass and drums. Their 2017 debut Reclamation (Tzadik) was tracked in 72 hours as a politically charged 'jazz protest record,' moving between free improvisation, heavy thrash riffing, and balladic passages.

Brooklyn/NYC instrumental trio blending prog, jazz, and metal into knotty, polymetric compositions; began as an acoustic jazz unit before electrifying into an aggressive math-rock/tech-metal power trio. Drummer Jeff Eber doubles in Dysrhythmia, and the band's Cuneiform-era records were engineered by Dysrhythmia's Colin Marston, tying them into the Brooklyn tech-metal underground.