Ken Freeman (b. 1946) is one of the pioneers of electronic music. A band member in the 60s, he spent the early 70s building the Freeman String Machine, which can be heard in albums of the day from art rock (Pink Floyd) to soft pop (David Essex). A prolific session and touring musician, he has also worked with Francis Monkman, Mike Oldfield and the theatrical music composer George Fenton. His keyboard wizardry is also present on Jeff Wayne's 'The War Of The Worlds'. 'The Tripods' is probably his most important work of the 80s, but he contributed title music to several other programmes, most famously the enduring BBC drama series 'Casualty', and later 'Holby City'.