A previously unreleased Doctor Who score mastered from the original tapes. Includes additional electronic tracks from Don Harper's catalogue and music featured in George Romero's Dawn of the Dead. A collection of Horror-Electronics, supernatural soundscapes and sinister library muzak from Australian composer Don Harper. Centring on a previously unreleased score for the 1968 Doctor Who series The Invasion (a dark otherworldly sci-fi jazz suite) Cold Worlds is also a focus on the electronic music of this largely unsung composer. Like many Australian film composers (Ron Grainer, Dudley Simpson, Don Banks) Don Harper based himself in the UK during the 1960s and subsequently found employment at the BBC and other British film and library companies.