Creepy Death Metal!

Sallow Moth have plenty of technical firepower, but Hydrophilous Brood is at its most interesting when the band stops trying to bulldoze everything in its path. The American progressive death metal project, led by Garry Brents alongside drummer Allen Gingerich, combines rapid-fire blast beats, dense riffs and cavernous vocals with unusual textures and occasional melodic detours. There's no shortage of brutality, and the production generally gives the faster material the weight it needs. However, the album's slower passages sometimes feel strangely distant and underpowered, as if the instruments have been pushed too far back into the mix. It's an odd contrast because the heavier sections sound full of life, while some of the atmospheric moments struggle to make the same impact. Still, there's enough experimentation here to keep the album from becoming just another technical death metal exercise.

“Nebulous Appendages of Vacillant Seafoam” wastes little time getting started, launching into fast drums, ripping riffs and deep, almost frog-like gutturals. The snare snaps nicely through the mix, and the bass has a plucky quality that adds some movement beneath the relentless guitar work. The song largely sticks to a straightforward death metal approach, but the occasional rhythmic shifts and slower passages provide enough variation to keep things moving. The production is particularly effective when the band locks into its faster grooves, allowing the intricate playing to remain clear without sacrificing the heaviness. “Distended in Panglacial Advent” expands that approach with even more frantic blasting, dynamic double kicks and vocals that sound almost animalistic. What makes this track more interesting is its willingness to pull back. A quieter middle section introduces lighter guitar lines, distant drums and haunting vocals, creating a surprisingly calming atmosphere before the band gradually restores the intensity. The heavy and restrained elements coexist naturally here, and the deeper bass toward the end adds a satisfying amount of weight. It's a good indication that Sallow Moth have more to offer than nonstop technical brutality.

“Driftmoth Vivisector” returns to dense riffs and sharp drumming, with pinch harmonics adding some welcome character. However, the vocals occasionally disappear into the mix, and the slower, more distant sections sound noticeably flatter than the heavier passages. The synths help flesh out the arrangement, but there are moments when the instruments feel muffled rather than atmospheric. “Biohybrid Virulence” improves the situation with a particularly satisfying snare sound and fast, ripping riffs that sit comfortably alongside the low, guttural vocals. The bass is more noticeable, and some surprisingly melodic guitar lines give the song a different character without abandoning its death metal foundation. The drum fills are another highlight, adding movement to the faster sections. Unfortunately, the same mixing issue returns whenever the music slows down. Those quieter parts lack the fullness and presence that make the heavier playing so effective, creating a strange disconnect within the arrangement.

“Arcane Benthic Umbilicus” makes that contrast even harder to ignore. The track opens with slow, eerie guitar tones and background noises that are initially so faint they struggle to establish a convincing atmosphere. Once the band settles into its heavier playing, the deep drums and thicker bass provide a much stronger foundation. The slower approach gives the bass more room to stand out, and the stop-start arrangement creates some interesting rhythmic tension. A guitar solo toward the latter part of the song also adds a welcome technical flourish, moving across the fretboard without feeling completely detached from the composition. There are good ideas here, but the quieter passages still feel oddly underwhelming, making it difficult to tell whether the thin sound is intentional or simply an unfortunate mixing choice.

“Polymorphic Gnaw” continues experimenting with slower, more restrained death metal. The distant screams remain difficult to hear, but the creepy guttural vocals fit the subdued atmosphere surprisingly well. The riffs have some interesting melodic qualities, and the more technical guitar work gives the song a distinct character when it comes through clearly. I appreciate that Sallow Moth aren't content to blast away for the entire record, even if these experiments don't always succeed. The album's title track then brings back the sharp, heavy riffing and dense drums, with fuzzy bass adding some welcome presence. It's a more direct track that makes good use of the band's technical side, building toward a slow, weighty fade rather than constantly trying to outdo itself.

The closing track, “Serene Aqueous Leech,” finally brings the album's contrasting ideas together in a way that makes the earlier experimentation easier to appreciate. It begins with slower, sharply played riffs and measured drumming, with the fuller bass providing a stronger foundation than some of the earlier atmospheric sections. The arrangement still has moments where the sound feels strangely empty, but the introduction of softer jazz-influenced passages changes the context entirely. Suddenly, the lower tones and restrained instrumentation feel purposeful rather than underdeveloped. The trumpet adds another unusual dimension, and the band moves between these more relaxed passages and bursts of groovy, intense riffing with a refreshing sense of freedom. It's easily the album's most adventurous track, and one of the clearest examples of what Sallow Moth can achieve when their experimental instincts click with the composition.

Hydrophilous Brood is a solid technical death metal release that becomes more compelling whenever Sallow Moth step outside their most brutal instincts. The drumming is powerful, the riffs are often sharp and memorable, and the strange atmospheric passages give the album a distinct identity. The biggest weakness is the uneven presentation of those quieter sections, which too often feel muffled and lacking in impact compared with the full, aggressive sound of the heavier material. The closing track offers a glimpse of how these elements could work together more convincingly. There's plenty to appreciate here, but stronger balance between brutality, atmosphere and experimentation would make the album even more rewarding.