What makes Immortal by Immortal notable?

The EP helped solidify Immortal's place in the second wave of black metal, contributing to the genre's popularity outside Norway. Its raw sound and thematic elements influenced numerous bands in the black metal scene and showcased the emerging characteristics that would define their future work. Released in 1991, 'Immortal' marked Immortal's debut EP, introducing their brand of Norwegian black metal to a growing international audience. This release came shortly before their first full-length album, establishing the band's identity within the genre and setting the stage for their influential sound.