Roy Harper-HQ (1975)

With his album "HQ", singer-songwriter Roy Harper almost completely abandoned his folk roots to fully embrace progressive rock. For this project, Harper enlisted heavyweights such as Bill Bruford (Yes and King Crimson), David Gilmour (Pink Floyd), John Paul Jones (Led Zeppelin), and David Bedford (Mike Oldfield), as well as renowned session musicians like Chris Spedding, Dave Cochran, and Steve Broughton. This shift towards more experimental sounds is evident in tracks like the epic "The Game" and the reflective "When An Old Cricketer Leaves The Crease", while mainstream rock peeks through in the energy of "The Spirits Lives" and the lighthearted "Grown Ups Are Just Silly Children", two tracks that contrast with the acoustic "Referendum (Legend)" and "Hallucinating Light", the only two pieces that still retain the vintage flavor of his more recent folk past.