Neal Acree 's music has been bringing the worlds of Azeroth to life for years! His latest project is a collaboration with Frostkeep Studios and their new game, Rend. He says as soon as he heard the description, it got him thinking about the raw, ancient music of Vikings: Neal tapped Norwegian singer Einar Selvik, from the band Wardruna , and incorporated his expertise in Old Norse, as well as using some traditional Scandinavian instruments, like the kantele and nyckelharpa, and a viola da gamba,