pigsx7’s is a world of downtuned doom in which no riff is too monolithic, no chord progression too bludgeoning. They sound as if they should be caught between the conflicting urges to hit a massive bong or go out on choppers. In fact, they’re a perfectly unbikery-looking quintet from Newcastle upon Tyne, longtime participants in that city’s music scene (two of them play live with the brilliant Richard Dawson) who have suddenly and unexpectedly broken the surface with this project, in which 70s heavy metal is played both straight and as some kind of art project.