Fleshvessel – Obstinacy: Sisyphean Dreams Unfolded Review

Sisyphus is my favorite character in Greek mythology. It’s why I picked up Obstinacy: Sisyphean Dreams Unfolded, the sophomore release from US-based metal vanguard, Fleshvessel. You see, not only does Sisyphus cheat Death twice—which in itself is hella metal—but in being damned to eternally roll a boulder uphill, he becomes an allegory for the human experience. This endless toil and glorification of the struggle serves as the thematic foundation for Obstinacy, revolving around “our own stubbornness/persistence as human beings and how it can be both a detriment to, or deliverance from, our collective and individual struggle for a better world.”¹ Fleshvessel has successfully handled such heady concepts in the past. Can they do it again?

A warped amalgamation of prog and avant-garde ambition, Fleshvessel occupies the most outer rim of death metal. As on 2023’s Yearning: Promethean Fates Sealed, Fleshvessel ranges far and wide for their vision. To realize Obstinacy: Sisyphean Dreams Unfolded, Fleshvessel calls upon over 20 instruments,² cinematic and literary samples,³ and at least ten different musical styles.⁴ This dizzying array of instruments and influences allows Fleshvessel to create a unique kind of concept album. Rather than telling a single story among several songs, Obstinacy functions as an anthology, each track a vibrant and unique vignette. Even though “Am,” for instance, has a distinctly cyberpunk feel compared to the epic, symphonic bent of “It Lurched from a Chasm in the Sky,” all four songs still orbit the same Sisyphean motif.

Fleshvessel’s ability to beat this chaotic mixture into submission is impressive, to say the least. Each instrument, each musical passage blends and bleeds together with a compositionally brilliant hand. It may not always be subtle, pleasant, or intuitive, but there is an undeniable and masterful flow to Obstinacy. The frenetic death metal that opens “Mental Myiasis” quickly lays down in a cosmic mire, where a guitar solo, spiraling into a tortured register, transforms into synths so subtly that I often missed the transition. Later in the same song, a beautiful, symphonic passage smoothly whips up into psychotic synths, death metal, and a deranged, “Flight of the Bumblebee”-esque piano before ultimately concluding on a bluesy guitar solo served hard-boiled. A mid-song synthwave melody in “Am” heralds the coming guitar riff, while operatic vocals help smooth over the transition and maintain the song’s cybernetic atmosphere. After listening to Obstinacy, I don’t think there’s anything Fleshvessel couldn’t fluidly incorporate into their sound.

Twelve criticized the programmed drums and pacing issues on Yearning, but neither concern is present here. Unfortunately, Obstinacy’s got its own shortcomings. While Fleshvessel’s songcraft is architecturally astounding, that doesn’t necessarily make it enjoyable. “Cessation Fixation” features a bass solo like a Seinfeld transition and some noir ambience reminiscent of Final Fantasy VII, while “It Lurched from a Chasm in the Sky” houses some groovy space jazz and a Middle Eastern percussion solo.⁵ It all fits together from a technical perspective, but such experimental infusions often strain the limits of agreeability. Fleshvessel also introduces a new “heavy metal falsetto” vocal style that feels almost parodic. It’s objectively and intentionally bad. I am quite certain that it’s integral to Fleshvessel’s vision, but to these ears, it’s a bizarre and grating performance. As Mrs Forrest would euphemistically say, “it’s certainly a choice.”

Fleshvessel is unquestionably comprised of exceptional musicians and composers. Lesser hands could never weave such a vast and varied tapestry as Obstinacy: Sisyphean Dreams Unfolded. Gnarly time signatures and polyrhythmic instrumentation smash and stitch together what should be mutually exclusive elements in a beautifully disfigured testament to the human experience. But technically masterful though Obstinacy is, the scope and prevalence of its experimentation greatly hamper its subjective, emotional, or euphonic accessibility. Ultimately, Obstinacy feels like a proof of concept, showcasing the furthest reaches of possibility. Die-hard prog fans and those with a passion for music theory may get more mileage out of Obstinacy: Sisyphean Dreams Unfolded, but for most, this will reinforce that just because you can, doesn’t mean you should.

Rating: 2.5/5.0
DR: 7 | Format Reviewed: 256 kbps mp3
Label: I, Voidhanger Records
Websites: Bandcamp | Facebook | Instagram
Releases Worldwide: December 12th, 2025