Triptykon will be performing a special orchestral set with the Dutch Metropole Orkes at the 2019 Roadburn Festival, which is set to take place on April 11-14 at 013 in Tilburg, NET. The performance will see Tom Gabriel Fischer running through a Celtic Frost/Triptykon three-part “Requiem.” Part one is “Rex Irae” off Celtic Frost’s “Into…