Artists like Aphrodite's Child

Eloy is a German rock band. Founded in 1969 by guitarist Frank Bornemann, the band is best known for their progressive rock music.

Wishbone Ash are a British rock band who achieved success in the early to mid-1970s.

Klaatu was a Canadian rock group formed in 1973 by the duo of John Woloschuk and Dee Long. They named themselves after an ambassador, Klaatu, from an extraterrestrial confederation who visits Earth with his companion robot Gort in the film The Day the Earth Stood Still. After recording two non-charting singles, the band added drummer Terry Draper to the line-up; this trio constituted Klaatu throughout the rest of the band's recording career.