Nothing

Two versions of Meshuggah’s breakthrough album exist. The original 2002 release was recorded with downtuned seven-string guitars; in 2006, they went back and re-recorded it with eight-string guitars, dropping the music even lower in the process. The last song, “Obsidian,” also lost its fade-out, going from four minutes to eight. The original (orange cover) has a jagged, ripping quality that the remake (blue cover) lacks, but the band’s polyrhythmic, interlocking-gears style of metal remains fascinating in both incarnations, like watching insects perform synchronized war-dances.