Created in May 2008 to further develop the darkness invoked by its immediate precursors, seminal black/extreme metal pioneers Hellhammer and Celtic Frost, Triptykon evolved from a Celtic Frost side project initiated by Tom Gabriel Fischer (a.k.a. Tom Gabriel Warrior), the group's singer, guitarist, and main songwriter. Following five years of songwriting and recording sessions, the subsequent release of their acclaimed Monotheist album, and a 125-date world tour