As with so much television music of the 1960s, '70s and '80s, the original master tapes of Carey Blyton's score for Revenge of the Cybermen were not retained. The only surviving copy is a set of four 7", 7.5ips "composer's copy" domestic 1/4-inch tape. It is from those digital transfers that this release is taken. Sadly, and to Carey's obvious and understandable disappointment, the completed music did not meet with the complete approval of the production team, and much of it was not used. Peter Howell of the BBC Radiophonic Workshop added some electronic embellishments and arranged some additional cues for parts two and three but some of that was also left on the proverbial cutting room floor.