http://en.wikipedia.org/wiki/Meshuggah Um Nothing. The upcoming album was recorded in five to six weeks in May[3] and was produced by the band at Dug-Out Studios in Uppsala, Sweden, and at their home studio in Stockholm.[19] The A last-minute decision to join 2002's Ozzfest tour forced the band to mix the album in two days and master it in one.http://www.stylusmagazine.com/reviews/meshuggah/nothing.htm