She is best known for providing special sound for the BBC science fiction series Blake's 7 taking over from Richard Yeoman-Clark from Season 2 onwards. She also provided the music for the episode "Gambit".
She also provided the incidental score for the 1985 Doctor Who story Timelash under the name Liz Parker. Parts of this score are featured on the Doctor Who: 30 Years at the BBC Radiophonic Workshop compilation. An LP of her score for the television series The Living Planet was released in 1984.
Elizabeth Parker was the last composer to leave the Radiophonic Workshop before its closure in 1998.
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