Input (grade 13): In support of Blackwater Park, Opeth embarked on its first world tour, headlined Europe for the first time, and made an appearance at the 2001 Wacken Open Air festival in Germany, playing to a crowd of 60,000.
Output (grade 11): This release encouraged Opeth to go on their first world tour, headlined Europe and playing to a crowd of 60,000 at the 2001 Wacken Open Air festival in Germany.