‘Mammoth’s Tundra’, the current single from Sun Below, first began life in 2023, before going through “significant changes” to wind up being the massive behemoth that kicks off the band’s 2025. The opening riff shares a slow, classic doom sound, instantly advertising the band’s heavy feel. After several bars, maybe at the point you’d expect a vocal to appear or the riff to do something dramatically different, Sun Below merely choose to heavy everything, whilst simultaneously slowing down to a sludgy crawl. The appearance of a vocal lends something Melvins-esque, before the doomy vibes slide into a slightly more melodic blues-doom sound, by which time, you’re either completely behind the band, or not. Working a Sabbath-on-steroids groove, the combo of drums and guitar latch onto an even deeper brand of doom, before the sludge comes back for a second assault.

For most bands, those five minutes of intense riffs would be enough to consider ‘Mammoth’s Tundra’ a job well done. But not Sun Below. Here, they choose to abandon the doom and switch gears to introduce a massive swagger that sounds like something lifted straight from ‘Sabbath Bloody Sabbath’, with an Iommi inspired lead break to match. It’s great to hear them really cutting loose at this point, but it doesn’t last. At the point where the listener is just getting into the more upbeat vibe, the band retreats back into a world of sludge to allow the main riff to repeat beneath more growled vocals. This is great, of course – and in many ways, peak doom – and by the time it allows a lead guitar to creep in, sharing some great descending riffs before launching into huge, blues drenched fills, Sun Below sound like a force of nature.

Twelve minutes of peak doom-sludge, peppered with fuzz rock and blues tones, topped by a massive wah-wah infused lead break, this is the ultimate slab of genre-based heaviness. For those new to the world of Sun Below – which, at the time of release, is likely to be a lot of metal fans – this uncommercial track will be a genuine treat.

Take a listen below.