Dies Irae
There is more than one artist with this name.
1) Dies Irae were a heavy progressive krautrock group from Saarbrücken (Germany), active from 1968 to 1972, they recorded only one album 'First' (1971) for Pilz before the label fell into the hands of Rolf-Ulrich Kaiser. Dominated by blues, 'First' is a heavy progressive effort owing much to the heavy blues sound and occult nature of Black Sabbath's debut album. Song titles such as 'Lucifer', 'Harmagedon Dragonlove', and 'Witches Meeting' display the groups interest in the dark side.