“If you're an Isis devotee, you're probably wondering what "Ghost Key," the second track from the band's 2009 finale, Wavering Radiant, is doing on the band's posthumous rarities and remixes compilation, Temporal. Worry no more: This demo omits Aaron Turner's domineering roar and lyrics about sacrifices and shadows, giving the quintet space to show its ghosted guitar tones and full-band surges. The”