As London metallers Harbinger pummel into “Prayer of Deliverance,” the opening track on their new mini-album, A Letter To Anguish, it really does feel like they’re literally stomping on your head. Sledgehammer heavy, the first release to feature new vocalist Dilan Alves finds the band pushing their sound to new levels. Brace yourself as the Londoners pin you to the wall with the unrelenting thump of “Hate File” then, while they’ve got your attention, let Alves, who has an almost CJ Mcmahon style to his animalistic howl, stamp his mark on proceedings. Sure, at a mere six tracks long, A Letter To Anguish, might be just a brief insight into the collective minds of the group but the mechanical air about tracks like “Guile” make sure that these twenty-five or so minutes are ones you won’t forge...