Snailforce

2 Foot Yard was a San Francisco/Oakland-based chamber-rock trio led by violinist-vocalist Carla Kihlstedt, alongside cellist-vocalist Marika Hughes and multi-instrumentalist Shahzad Ismaily (drums, guitar). Functioning as a songwriting collective, the group blended chamber-music intimacy with rock and avant-pop, occupying "the fertile cracks between art song and pop song." It grew out of a solo album Kihlstedt released on Tzadik and released two records: the self-titled "2 Foot Yard" (Tzadik, 2003) and "Borrowed Arms" (self-released, 2008).

Mondo Cane is Mike Patton's orchestral love letter to 1950s–60s Italian pop, assembled after his years living in Bologna: a 40-piece orchestra, 15-piece band, and choir behind Patton crooning Neapolitan standards and Ennio Morricone's 'Deep Down', released on his own Ipecac label in 2010. Co-produced and arranged with conductor Daniele Luppi, the recordings were stitched together from live European performances in 2007. It earns its place in an experimental metal atlas as the purest example of where the genre's members go when they leave metal entirely — the Faith No More and Mr. Bungle frontman trading screams for Morricone-era orchestration, and critics compared it favorably to Mr. Bungle's California.

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Gates of Paris is a French symphonic/opera power metal side-project of Kerion guitarist Remch Carrairou and Chris Barberi, releasing a self-titled concept album in 2018 — a theatrical cabaret-revue journey through Parisian history blending power metal with jazz, swing, flamenco, cancan, gypsy music, and classical citations from Bizet and Berlioz.

Cosa Brava is an experimental rock and free improvisation group formed in March 2008 in Oakland, California, by guitarist and composer Fred Frith (Henry Cow, Skeleton Crew, Naked City). All About Jazz described their sound as existing somewhere between folk, Celtic, modern chamber, Latin, funk, Eastern, and prog-rock. The quintet released Ragged Atlas (2010) and The Letter (2012) on Switzerland's Intakt Records, followed by Z Sides (2024). Its lineup draws together members of Sleepytime Gorilla Museum with longtime Frith collaborator Zeena Parkins.

Rabbit Rabbit Radio is the song-a-month art-pop duo of Carla Kihlstedt and Matthias Bossi, both formerly of Sleepytime Gorilla Museum. Founded in February 2012, the project releases a new song to Bandcamp subscribers on the first day of every month, collecting them into yearly volume albums. Drawing on art song, folk song, industrial and improvised music and heart-wrenching balladry, their songs are described as raw, beautiful, sparse and rich. The core duo is expanded in performance and recording by Jeremy Flower and Jon Evans.

Sebkha-Chott are a shape-shifting French avant-garde/experimental-rock ensemble from Le Mans, active since 1999, centered on bassist Wladimir Ohrelianov II, drummer Yüla Slipobitch, and (since 2009) saxophonist/vocalist Souv Ponky Ponk. They coin their own genre tag release to release — 'Mekanik Metal Disco,' later 'Bizarre AvantPorn Mekanik TheaterCore' — blending metal, jazz, zeuhl, gypsy/Egyptian melodicism, and African percussion, staged live as absurdist burlesque theater. Critics and the band themselves invoke Frank Zappa, Magma, Mr. Bungle, and Fantômas as touchstones, though no documented member or label overlap with either metal act was found.

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Diablo Swing Orchestra is a Swedish avant-garde metal band formed in Stockholm in 2003, built around a genre-hopping fusion of swing, symphonic and progressive metal, jazz, and classical orchestration. Their theatrical sound pairs operatic and rock vocals with a horn section and cello, threaded through crunching riffs — an aesthetic they trace to a tongue-in-cheek mythology about a 16th-century "Diablo Swing" music guild. Across five studio albums from The Butcher's Ballroom (2006) to Swagger & Stroll Down the Rabbit Hole (2021), they have remained one of the more distinctive one-of-a-kind acts in avant-garde metal.

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Don Salsa was an experimental avant-prog/avant-metal band formed in 1993 while its members were in high school in the South Bay region of Los Angeles, active until 1997. The band recorded a single album, 'Koolaide Moustache in Jonestown,' released May 21, 1997, recorded over nearly three years in a warehouse on a primitive digital multi-track recorder, with an opening track exceeding 30 minutes. Core members Tim Smolens and Jason Schimmel went on to form Estradasphere, and Schimmel later became a founding member of Atomic Ape and an active member of Secret Chiefs 3.

Koolaide Moustache in Jonestown [Full Album]play in the dock

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Sal y Mileto are Ecuador's most influential rock band, fusing progressive/alternative rock with hardcore, heavy metal, jazz and electronics into what they call 'Rock Libre Ecuatoriano.' Formed in 1994 in Latacunga, they've staged theatrical works blending poetry and contemporary dance and woven in Andean instrumentation like the traversa flute.

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Frore 5 Four is an instrumental avant-garde/progressive metal project from Canada, releasing a run of Bandcamp albums built around unusually prominent accordion. Reviewers describe the sound as 'stomping accordion polka weirdness juxtaposed to neoclassical harmonies' — vocal-free, structurally unpredictable, tonally caught between creepy and jovial.