Amon Amarth will be releasing a new album, titled “The Allfather Awakens,” on October 2. A video for the opening track, “Gjallarhorn,” can be found below: The following was said about the single: “Following the release of Amon Amarth‘s first-ever acoustic excursion ‘Upphaf‘, the band unleash ‘The Allfather Awakens‘ opening track and epic tale of…