Betraying the Martyr's album, Phantom, was released a little over a year ago.  Undoubtedly, the most popular track on the record was their cover of the Disney tune, "Let It Go," from Frozen.  Betraying the Martyrs and Sumerian Records, in celebration of the album's 1st anniversary, shared a guitar walk through video performed by Baptiste Vigier and Lucas D'angelo on July 28th.  You can check it out here.