Yet it wasn’t until their debut album Celestial, a year later, that Isis started carving their own corner of heavy music. I remember playing the track “Celestial (The Tower)” for a friend of mine during a Music Technology class. As I expected, his jaw fell open at 52 seconds. The slow groove imploded in a unified low F (almost a whole octave below standard tuning), groaning out of tune due to the sheer weight of the note. It was real a white-knuckle heavy moment.
