Review: Sphäre Sechs - Nebular Resonance

Artist: Sphäre Sechs

Album: Nebular Resonance

Label: Loki Foundation

Release date: March 2026

Dark ambient can be many things: a conduit to the innermost depths of one's soul, the claustrophobic passages of a catacomb, a portal to the other side of existence, or a journey across space and time to aeons long gone or perhaps those that are yet to come. However, more fundamentally, dark ambient is a haven of tranquillity and quiet reflection in the constant sensory bombardment of the modern world. That last essence is what Sphäre Sechs, a long-standing collaboration between Phelios' Martin Stürtzer and independent artist Christian Stritzel, have chosen to expand upon for more than two decades now. When I say expand upon, I mean on a truly cosmic scale, as their outer space-oriented brand of ambient music has yielded seven full-length albums so far, and it's my pleasure to review the latest one today, the duo's first since 2023's Extradimension.

Let me start by saying that if you're already familiar with Sphäre Sechs' work, then there is little on this album that will surprise you. And it's not supposed to. The project's synth-driven, epic soundscapes on a cosmic scale sound just as warm and inviting as ever, eschewing the more threatening aspects of space on purpose and providing a pure feel-good shot of nostalgia to that inner kid that long ago dreamed of exploring the universe in a spaceship. Do not be deceived by the approachability of Nebular Resonance, though - there is still plenty to unpack here, thanks to Martin's masterful deployment of synth drones and Christian's extensive use of the theremin, a somewhat forgotten instrument that's fantastically compatible with the kind of atmospheres that dark ambient aims to achieve. As the lush, layered, rich sound evolves from one track to another, it's difficult not to visualise the wonders of the cosmos in one's inner eye and feel one's body almost physically drifting away. The duo's choice of themes shows a deep interest in cosmic phenomena, even if they intentionally decide not to give away too much, lest the listener have insufficient room to paint their own vision of outer space based on the emanating sonic stimuli. Just like the scale of the subjects being treated here, the sound is grandiose and dynamically vast, seamlessly shifting between deep, barely perceptible signals and huge circular waves of synth, engulfing but never overwhelming. The album is notably disciplined in its exploration, with most tracks clocking in between 6 and 7 minutes, enough to allow the dynamics to fully develop without overstaying their welcome.

In short, while Nebular Resonance brings little new to the table compared to Sphäre Sechs' previous work, it does feel like they managed to sublimate everything that's so great about their sound on this one. I wouldn't necessarily call it their unquestionably best release as such, since this decision would likely depend on my mood of the day, but sonically and compositionally, there's no doubt that the duo really nailed the atmosphere they were going for this time around. A mature work produced by mature artists, and one that I would comfortably recommend to the widest possible base of dark ambient fans.

Rating: 8/10