The song opens with a guitar riff that feels like it was excavated from 1973 and polished just enough to survive the present. Kieron McManus, whose blues and classic rock obsessions have clearly been marinated in years of competing-band warfare before this alliance with rhythm guitarist Liam McLaughlin, lays down a lead line of genuine authority. It snakes rather than struts, coiling around the rhythm section before the whole thing detonates into a chorus of considerable heft. This is not the work of musicians who discovered their influences last week. These are people who have lived with ZZ Top at unreasonable volumes.

McLaughlin's rhythm work deserves its own paragraph, frankly. Where lesser bands allow the second guitar to become wallpaper, his playing here has real personality — taut, almost angular at the edges, carrying faint traces of Radiohead's elemental chug without ever sliding into imitation. The Biffy Clyro influence McManus and McLaughlin together seem to carry is less about sound than about attitude: that refusal to make things comfortable when uncomfortable is truer.

Aidan Spencer's bass is the spine around which everything else is organised. Melodic without being showy, driving without being mechanical, his playing belongs to the school of bassists who understand that the low end is where songs live or die. You hear it most clearly in the verses, where the guitars thin out and Spencer carries the groove alone for a bar or two — a quiet act of confidence from a musician who clearly knows exactly what he's doing.

And then there is Andrew Knox-Watson behind the kit, playing with the kind of big-room conviction that recalls Keith Moon at his most purposeful and Ginger Baker at his most focused. The snare hits land like punctuation marks at the end of very important sentences. Knox found this band through a postcard reply to an online ad — if that origin story isn't already printed on a t-shirt, someone has made a serious commercial error.

Recorded at Chem 19 — where Franz Ferdinand honed their angular genius and Calvin Harris first discovered that Scotland could soundtrack the world — entirely on vintage equipment, *Lady Danger* has a warmth and physical presence that modern rock recording too often sacrifices on the altar of clinical precision. You can feel the room. You can feel the tape. You can feel, most importantly, the four human beings making collective decisions about how loud and how hard and how honest to go. They went very loud, very hard, and entirely honest.

Is it a debut single for the ages? It is a debut single that makes the next single feel essential. Delta Fire have introduced themselves not with a whisper dressed as a roar, but with an actual roar — full-throated, fully committed, and carrying enough riff architecture to suggest the real building work has barely begun. Scotland, consider yourself warned.

*Lady Danger is out now. Delta Fire play BLOC+ Glasgow, March 31st.*