Blackwater Park - Dirt Box (1971)

Blackwater Park was a progressive hard rock band from Berlin, Germany, with an English vocalist. They released only one album, Dirt Box, which included a cover of

Birth Control - Plastic People (1975)

Formed in Germany, Birth Control it's a somewhat strange group: they started as a instrumental jazz rock outfit, but their albums are in the vein of Deep Purple with a German touch.

Plastic People, by the way, it's a mix of progressive, hard rock, krautrock (very little), jazz/soul and

Lucifer's Friend - Lucifer's Friend (1970)

Lucifer's Friend, previously known as Asterix, formed in Germany with the English singer John Lawton, later with Uriah Heep.

Their self-titled album released in 1970 it's a mixture of Deep Purple, Uriah Heep, Led Zeppelin and Black Sabbath. In some tracks you can clearly hear, in the guitar playing,