What makes Piece of Time by Atheist notable?

'Piece of Time' is notable for pioneering elements of progressive metal within death metal, influencing countless bands in the genre. Its innovative approach garnered critical acclaim, helping establish Atheist as a key player in the underground metal scene and contributing to the evolution of technical death metal. Atheist's debut album 'Piece of Time' was released in 1989, marking the band's entrance into the progressive death metal scene. This album came during a time when they were solidifying their identity and sound following the formation of the band in 1987. It set the stage for their subsequent releases, which would further define the genre.