Brazilian Heavy Metal band Guardian Of Lightning has shared a new music video for the track “Sound of Thunder!” Their new album Cosmos Tree was released worldwide today, and it was mastered by Billy Stull (Led Zeppelin, Jimi Hendrix, Peter Cris) at Masterpiece Mastering, and contains new cover art by Gerson Watanuki. Watch the new music video now! Would you please consider giving this album a review for your site, or perhaps sending some questions for the band to answer via email for a small feature?