Philadelphia instrumentalist crushers Seismic will release their awaited debut full-length, The Abyss of Time, on Oct. 2, celebrating the album’s arrival with an appearance in Brooklyn, NY, at the inaugural In the Key of Doom. You may recall in 2023 the four-piece posted a demo for the 29-minute-long “The Time Machine” (review here); that song features as the closer to the five-track/62-minute offering, which is likewise thoughtful and visceral in its delivery.

And as the premiering-below opener “In the Days of the Comet” gets underway with tense ambience and slow fade-in of drums, breadth and heft intertwine to hone an approach that has the slog of morose doom with a post-metallic or cosmic sprawl. Lead guitar takes some of the verses where vocals might otherwise be, establishing a melody to cut through the morass, but the march underneath remains, and when they align around the chug circa four minutes into the total 12, the affect is righteously pummeling and immersive in kind. Expanse met with blunt force tonality.

It’s hard to say, as “In the Days of the Comet” proceeds into its even-heavier back half, which side wins out, I think mostly because the two sides aren’t actually working against each other. In the final pickup of speed at the end of the opener, they’re all-in, but directed toward the same ends, working toward the same goal in sound. This impression extends to the subsequent “The War of the Worlds,” which has less than half the runtime but is able to convey a different kind of intensity for that. I can’t shake the feeling that somebody in this band is into death metal.

I don’t know if it’s something in the guitar or bass tone, but there’s a severity to some of the turns of riff that feels stately in the way of earlier Morbid Angel, but even as its chuggingest, “The War of the Worlds” is rooted in doom/post-doom heavy, and “In the Days of the Comet” has already proven that slow or fast, Seismic make crush their priority. Centerpiece “When the Sleeper Wakes” introduces a bit more flexibility in its midtempo ‘hook,’ but mostly follows a single riff, fleshing it out along the way in a manner that is very, very much doom, the band able to conjure a sense of flow while sounding like solidifying concrete.

The penultimate “Star Begotten” ups the intensity again and crashes with a sense of chaos but is never out of control or actually stepping away from its targeted path, but here too Seismic use their chug as a weapon of choice, and with good reason. The second half of the song builds into a plod and is eventually topped with a thickened fuzz lead that, as it marches toward minute eight and its ultimate fadeout, feels like it could and might otherwise just keep going. This, of course, brings about the ambient cymbal hits announcing the beginning of “The Time Machine,” which is a world unto itself.

True, they kind of had to include it after the demo, and it’s a primary example of how they operate in terms of being “dense in tone, but expansive in atmosphere” — which I agree with or I wouldn’t quote it from what they say below — but it almost can’t help but be encompassing. Still, “The Time Machine” allows them to show the meditative underpinnings of all The Abyss of Time‘s onslaught, and to underscore the depth of mix and tone that has pervaded across the album to this point, while at the same time pushing their compositional limits to places most bands wouldn’t dare to go, either on their first LP or at any point thereafter.

It happens in stages and is rife with post-heavy ethereality, float and crush, and as the song moves toward its 10th minute, the build-up recedes back to allow realignment for the next movement. This happens subtly a couple of times across “The Time Machine,” with the most stark stop being just before 19 minutes in as they shift into a different kind of quiet part to gradually build up into the album’s final march, again showing a meditative flash — or to put it more simply, some underlying influence from Om — in the process.

But as much as The Abyss of Time is the result of this duality of intention in terms of weighted, physical force and atmospheric reach, it’s never starkly pitting elements against each other. The complexity of intent does not make the work feel fractured. It is a cohesive monster of a thing, realized across the span of The Abyss of Time, multifaceted but directed with skill and purpose.

As debuts go, The Abyss of Time stands readily among the finest I’ve heard in 2026, and though it was a while in the making, the band’s time was obviously well spent in ironing out what this record would be and what it would portray in terms of who they are and may yet become as a band.

“In the Days of the Comet” premieres on the player below. Please enjoy:

Seismic, “In the Days of the Comet” track premiere

“In the Days of the Comet” is the opening track for our first full length, The Abyss of Time. It was the last song written for the album and is a fine example of our rigorous democratic approach to songwriting. Everyone brought ideas to table, which then went through the Seismic grinder of scrutiny and debate before building the finished song. Dense in tone, but expansive in atmosphere, “In the Days of the Comet” applies a post-rock approach to a classic doom groove transitioning into a swinging and melodic coda.

The Abyss of Time, Seismic’s debut full-length, is available for preorder via Bandcamp. A limited CD version featuring exclusive art will be available at In the Key of Doom, where Seismic opens Night 1 on Friday, October 2, at The Meadows in Brooklyn, NY. The album arrives via Bandcamp on October 9.

Tracklisting:
1. In the Days of the Comet (12:22)
2. The War of the Worlds (4:46)
3. When the Sleeper Wakes (8:08)
4. Star Begotten (8:13)
5. The Time Machine (29:15)

A full release on digital streaming services and vinyl will be announced at a later date.

Recorded and Mixed by Steve Roche at Permanent Hearing Damage
Additional Recording by Anthony Mariano at Mountain Street Studio
Mastered by William J. Sullivan at The Wreckin’ Joint
Cover Art and Design by Ken Miller at Violent Visual
Interior Art by Anthony Mariano

Written and Performed by Seismic:
Mike Lang – Drums
Ken Miller – Bass
Tommy McEwan – Guitars
Anthony Mariano – Guitars

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