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Intronaut is an atmospheric sludge-metal band from Los Angeles, California formed in 2004.

Intronaut play progressive metal with harsh vocals combined with progressive and jazzy instrumental breaks. Their sound incorporates traits from sludge metal, jazz and death metal.


Intronaut features Sacha Dunable, ex-Anubis Rising, guitarist/percussionist David Timnick, drummer Danny Walker of Uphill Battle and bassist Joe Lester. In 2005 Intronaut released a four-track demo entitled Null – Demonstration Extended Play Compact Disc. They signed to Goodfellow Records in October, and in early April 2006, they recorded Void at Shiva Industries in Santa Ana, California with producer John Haddad.

In August 2007 guitarist / vocalist Leon del Muerte left the band to focus on his Murder Construct project. He was replaced by Dave Timnick.

In January 2008, the band announced that they had signed a world wide deal with Century Media Records, and completed their next album, Prehistoricisms. They also
Thanks to kshskang, tupan, adg211288, Bosh66 for the updates

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INTRONAUT Discography

INTRONAUT albums / top albums

INTRONAUT Void album cover 3.77 | 5 ratings
Atmospheric Sludge Metal 2006
INTRONAUT Prehistoricisms album cover 4.33 | 16 ratings
Atmospheric Sludge Metal 2008
INTRONAUT Valley Of Smoke album cover 4.00 | 13 ratings
Valley Of Smoke
Atmospheric Sludge Metal 2010
INTRONAUT Habitual Levitations (Instilling Words With Tones) album cover 3.40 | 9 ratings
Habitual Levitations (Instilling Words With Tones)
Atmospheric Sludge Metal 2013
INTRONAUT The Direction Of Last Things album cover 4.15 | 9 ratings
The Direction Of Last Things
Atmospheric Sludge Metal 2015
INTRONAUT Fluid Existential Inversions album cover 3.94 | 4 ratings
Fluid Existential Inversions
Progressive Metal 2020

INTRONAUT EPs & splits

INTRONAUT Null album cover 3.50 | 2 ratings
Atmospheric Sludge Metal 2006
INTRONAUT The Challenger album cover 3.50 | 1 ratings
The Challenger
Atmospheric Sludge Metal 2007

INTRONAUT live albums

INTRONAUT Live @ Muziekodroom - Hasselt, Belgium 10/15/11 album cover 0.00 | 0 ratings
Live @ Muziekodroom - Hasselt, Belgium 10/15/11
Atmospheric Sludge Metal 2015
INTRONAUT Live 6​/​4​/​13 @ Hawthorne Theater, Portland OR album cover 0.00 | 0 ratings
Live 6​/​4​/​13 @ Hawthorne Theater, Portland OR
Atmospheric Sludge Metal 2015

INTRONAUT demos, promos, fans club and other releases (no bootlegs)

INTRONAUT Old​/​Unreleased Demos, etc 2003​-​2005 album cover 0.00 | 0 ratings
Old​/​Unreleased Demos, etc 2003​-​2005
Atmospheric Sludge Metal 2015

INTRONAUT re-issues & compilations

INTRONAUT singles (1)

.. Album Cover
0.00 | 0 ratings
Milk Leg
Atmospheric Sludge Metal 2013

INTRONAUT movies (DVD, Blu-Ray or VHS)


INTRONAUT Fluid Existential Inversions

Album · 2020 · Progressive Metal
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Since the dawn of the post-metal / atmospheric sludge metal combo pack style that Neurosis delivered with its phenomenally original “Souls At Zero” all the way back in 1992, the two closely and often overlapping styles of metal have really covered it all having cross-pollinated with black metal, folk metal, drone metal and beyond but there have been a lot of copycats out there as well. For every Isis there are 10 Pelican sounding bands but even in the fast riding populated style of music that really took off in the 2000s some bands managed to craft a sound that stood on its own. INTRONAUT is one such band that immediately caught the attention of the metal world with its debut album “Void” and has pretty much continued to crank out a series of strong original albums ever since.

While this LA based band has been fairly consistent in delivering a new release every two to three years, it’s been five long ones since the release of “The Direction Of Last Things” and finally in 2020 makes a comeback with the band’s sixth overall full-length studio release FLUID EXISTENTIAL INVERSIONS and with a moniker that connotes a mental inner journey into the vast metaphysical universe that lies within, this album title continues the nebulous mental quandaries of the reality we find ourselves existing in and cranks out nine tracks of the band’s impressive progressive and even jazzy fusion mixes of crunchy sludge metal magic with atmospheric post-rock meanderings with psychedelic extras.

One of the most substantial changes between the half decade absence of the great INTRONAUT is the departure of long time drummer Danny Walker who left the band in 2018 but the great news is that he was replaced by a seasoned tech metal type named Alex Rudinger who has played with a large number of metal bands including Azrael, Burning Shadows, Conquering Dystopia, The Faceless, Good Tiger, The HAARP Machine, Ordinance, Samadhi and Threat Signal. While technically just a session musician, his drumming prowess amplifies INTRONAUT’s strengths and keeps these guys firmly placed in the big boy’s world of progressive sludge metal while other bands like Mastodon and Baroness seem to be wimping out and aiming for more crossover appeal. INTRONAUT continues to stand proud in its time signature rich stamped of sludgy riffs and psychedelic atmospheric excursions.

The beauty of INTRONAUT is that while keeping the same basic stylistic approach that started from the beginning, this band manages to keep quality control with every album just different enough from what came before and in the process manages to consistently deliver an excellent album’s worth of progressive sludgy post-metal with psychedelic accoutrements. FLUID EXISTENTIAL INVERSIONS is no exception to this rule. In many ways, this album is like a synopsis of the band’s entire run. Not only does it include some of the heavier growly vocal fueled sludge attacks as heard on “Void” but also delivers a fair amount of clean vocal led atmospheric post-metal sounds that peaked on “Habitual Levitations (Instilling Words With Tones).” Add in an amazingly crisp clean production that captures the perfect essential oils of both the metallic fury and clean passages and you have a freekin winner of an album.

Personally i think INTRONAUT probably peaked with its sophomore album “Prehistorians” which captured its sound in perfect balance but despite that fact the band has been very consistent in crafting really complex yet compelling albums ever since and that certainly has not ended with FLUID EXISTENTIAL INVERSIONS. While i would prefer that the band venture into more explorations beyond their comfort zone, i’m quite aware that they are walking that tightrope act of pleasing the old fans while trying to attract the new and for that effort i have to say that this album is the perfect mix of what has come before even if no new elements have been added other than the tight-knit instrumental interplay that includes the new drummer. While this album may not expand on the band’s previous stylistic approach in any way, for true fans this will not disappoint one little bit. This is another strong INTRONAUT album that delivers the goods.

INTRONAUT Valley Of Smoke

Album · 2010 · Atmospheric Sludge Metal
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The year 2008 was a good one for INTRONAUT as they signed onto a worldwide deal with Century Media Records and hit a home run with their amazingly brilliant “Prehistoricisms.” The band followed up with a successful touring schedule with Kylesa and Mastodon as well as the Great Indian Rock Festival in Dehli, India. Two years later INTRONAUT followed up that album in a most unexpected way with their 2010 release VALLEY OF SMOKE. There was a new direction a-brewing and the most noticeable aspect is the toning down the overall harshness and adding heavier doses of post-rock thus creating a thick atmospheric slick of post-metal with healthy portions of sludgery on the side. The band enjoyed the luxury of a stable lineup as well and on this one sees a cameo appearance of Justin Chancellor from Tool adding a second bass on the title track.

The opening track “Elegy” belies the direction of the album as it sounds like the signature progressive post-rock infused sludge metal that the band has been conjuring up from day one, complete with progressively constructed distorted riffs, shouted vocals and jazz-infused song structures. Starting with the second track “Above” Sacha Dunable seems to leave the harsh extreme vocals behind for the most part and focuses more on a clean atmospheric approach reminding me of the clean parts on later Enslaved albums in mood and dynamics. While the shouting pops up intermittently there is much more attention paid to the lighter aspects of the band’s sound. This is an approach they would even further on the following album “Habitual Levitations.”

After a perfect album like “Prehistoricisms” i hardly expected a repeat in its successful formula and i’m glad INTRONAUT didn’t try to simply recreate it. I have to admit that i was initially disappointed by the approach on VALLEY OF SMOKE upon first listen as they seem to be on the same trajectory as The Ocean or even Mastodon where they began their career as uncompromising heavy sludge outfits and have slowly drifted towards the more ethereal and atmospheric pastures of post-rock infused sludge metal but after a few listens this one does sink in and the progressive time signature workouts accompanied by seasoned musicians and the stellar production of Josh Newell only makes this one better after every spin. True that it will never dethrone what came before in my book but VALLEY OF SMOKE is still quite the sophisticated atmospheric sludge metal attack with lots of post-rock meanderings. Unlike “Prehistoricisms” which i can put on any time and fall into the musical ecstasy zone, VALLEY OF SMOKE requires me to be in the right mood to want to hear, but when i am this one does deliver the goods.

INTRONAUT Prehistoricisms

Album · 2008 · Atmospheric Sludge Metal
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After a debut album and two EPs under their belt the members of INTRONAUT were only getting warmed up it seems. Another member change with Dave Timnick taking over guitar duties after the departure of Leon del Muerte seems to have been the necessary ingredient to grant INTRONAUT that magical prestidigitation to whip up and unleash their absolute wildest and most experimental album of their career. PREHISTORICISMS continues their reputation as an intellectual extreme metal band that seamlessly blends together elements of post-rock, psychedelia and crushing sludge metal brutality all laid out in the most satisfying of musical deliveries of the ages. This is the album that even made the critics go gaga and publications such as Decibel, Metal Maniacs, Outburn, Revolver and so on praised INTRONAUT as the next best thing and after hearing this musical masterpiece it isn’t too overly difficult to understand why.

The band goes about their usual business as before intermingling placid post-rock segments that once the listener is lured into a state of hypnotic bliss is sonically assaulted with catchy brutal riffs that sustain long enough to establish their dominance only to have the false sense of security shattered by unpredictable time signature changes that wend and wind the compositions through highly progressive head bangin' territory. While all the members are brilliant on their respective instruments, it’s worthy of mentioning the above and beyond the call of duty of fretless bass player Joe Lester who infuses the sound with the technical jazz fusion aspects. Equally vital to the new technical achievements is former Jane’s Addiction engineer Josh Newell, who blends together the seamless transitions between the soft and silky contemplative parts and the hardcore brutality by smoothing out any potential awkwardness between the contradictory styles on display.

While PREHISTORICISMS is undeniably the sound of INTRONAUT, the band went for broke and evolved every aspect of their sound to the next level. The compositions have been crafted carefully as to retain their signature sludge bombast all wrapped up with creative uses of slide guitar, fretless bass, highly technical drumming and ambient jazz-infused soundscapes. Timnick’s riffing style is top notch with its fuzzed fury graciously fusing with Sacha Dunable's aggressively screamed vocals with an emphasis on lyrical intellectualisms and concepts of the most primitive and atavistic aspects of the human experience. As mentioned, what really sets this release apart from its predecessors isn’t the excellent musicianship that is present on all of their material but rather the infusion of the jangly post-rock and jazz-infused technicalities. While throughout the majority of the album we are treated to brutal jarring dissonant orotundity, on the final track “The Reptilian Brain (Sleep, Eat, Shit, Fight, Fuck)” we are treated to a five part suite that begins like an Indian raga with sitars and tribal drums and slowly evolves into a 16 minute plus progressive behemoth that develops into a sludge metal monster that satisfies on all musical levels.

Not only is this my favorite INTRONAUT album but this is one of my favorite albums of all time. This is not only a desert isle pick but one that takes many of my disparate musical interests and throws them all together. The success lies not in the fact that these elements are all included but rather in how well crafted their inclusions are and how meticulously placed together in a logical sequence they exist while still finding improvisational space to deliver jarring surprises when least expected. The heavy down-tuned guitars and fretless bass work together in harmony while the percussion takes the listener on an exotic counter-journey. The rhythms, tones, timbres and tempos are all sorted out in a way as to allow the psychedelic and the sludge to not only coexist but to play together and dance the night away. This is highly recommended for anyone who craves mass quantities of intelligent design stamped upon every musical measure and imbued with exemplary musical maestrohood.

INTRONAUT The Direction Of Last Things

Album · 2015 · Atmospheric Sludge Metal
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"The Direction Of Last Things" is the 5th full-length studio album by US progressive metal act Intronaut. The album was released through Century Media Records in November 2015. It´s the successor to "Habitual Levitations (Instilling Words With Tones)" from 2013.

Stylistically Intronaut have taken a slight step back to their heavier past and reintroduce harsh shouting hardcore vocals. A feature which was almost completely missing from their sound on the predecessor. Most vocals on the album are still mellow ethereal clean singing though (I´m often reminded of Paul Masvidal from Cynic). The instrumental part of the band´s music is still rooted in an adventurous playing rhythm section. Both drummer Danny Walker and bassist Joe Lester are very busy and quite inventive. The same can be said about the two guitarists/vocalists. The technical level of playing on this album is simply through the roof. There are strong jazz/fusion leanings in the music, but also sludge, post rock, mathcore, and progressive metal elements. The many styles combined it´s pretty hard to make a valid description of the band´s music, but atmospheric and technically well played progressive metal isn´t an all wrong label.

The material on the 7 track, 46:03 minutes long album is well written, intriguing, and consistent in both style and quality. The combination of heavier hard edged parts and atmospheric mellow sections works well for the band. Even at their most aggressive and busy Intronaut have a sophisticated calm to their delivery, which means the music on "The Direction Of Last Things" is sometimes closer to rock than it is to metal. Artists like A Perfect Circle, Tool, and late era-Cynic are valid references.

"The Direction Of Last Things" is a very well produced album, featuring a clear, organic, and powerful sounding production, which fits well with the atmospheric music. So that combined with the brilliant musicianship and the adventurous songwriting, make for an intriguing listen and a high quality release. That´s of course no surprise if you´re familiar with Intronaut´s preceeding releases, but it´s still worthy of praise that they can continue to keep the quality level of their output as high as they do here. A 4 star (80%) rating is deserved.


EP · 2006 · Atmospheric Sludge Metal
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Originally this came out as their first demo titled “NULL - Demonstration Extended Play Compact Disc” that was recorded and released in 2005, but the band managed to impress the ears of the good folks at Goodfellow Records and this was repackaged, given a real album cover and released simply as NULL which became their very first release as an EP. The demo only had four tracks but an additional fifth track “Burning These Days” was included on the EP.

NULL shows just how much INTRONAUT have changed over the course of a decade, however much of their progressive take on the world of sludge metal is quite in tact on this first output. NULL reminds me a lot of the earliest Mastodon releases where their music is much more aggressive and fueled with adrenaline with fewer slower jazzy passages slipped into the mix but not totally devoid thereof either. For the most part Sacha Dunable’s vocals are growly and remind me a lot of Luc Lemay from Gorguts at this stage with very, very little clean vocals to be heard. The band are already adept at playing extremely complex riffs that form their signature melodic dissonance as Leon Del Muerte and Dunable deliver highly distorted and aggressive guitar riffs backed up by equally hardcore bass techniques of Joe Lester. Danny Walker has mastered the sludge metal drum sound but on this one he plays more aggressively and all the tracks are of a much higher tempo than much of the albums that follow. The time sigs and progressiveness is already in full play.

If you’re already an INTRONAUT fan don’t miss this debut EP for it’s as entertaining as any of the lot but it is true that the intricacies and complex song structures that they would really develop on “Prehistorians” are not quite so characteristic of their sound at this stage. This is a band that wants to blow the roof off the house pumping out fast and furious sludge metal without much of the atmospheric touches that they successfully weave into their overall trademark brand of sludge. While i wouldn’t call this their most essential offering i do find it one that i can’t live without and a highly enjoyable form of sonic torturous eardrum bombardment.

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