 The lyrics, usually delivered by bass voice of the singer Milan Fras, written in German, Slovene and English, originally treated war and military themes, but later turned focus to any highly charged political issue of the moment, sending intentionally ambiguous messages.They also recorded several cover versions of popular songs, often turning light melodies into sinister-sounding Gothic tunes.The band has seen numerous line-up changes, with Dejan Knez, Milan Fras, Ervin Markošek and Ivan "Jani" Novak forming the best-known line-up.