Sieges Even’s 1988 debut, Life Cycle, is a highly regarded, complex technical/progressive thrash metal album, praised for its intricate musicianship, solid songwriting, and unique blend of thrash with epic and progressive elements, featuring standout bass from Oliver Holzwarth and distinctive vocals from Franz Herde, despite Herde’s voice being an acquired taste, establishing it as a genre classic and influential for later progressive metal bands.