This included: The theme and incidental music, composed by Paddy Kingsland, combines the sound of an EMS Synthi 100 synthesiser with a small live band (horn, sitar and percussion).

[2] Kingsland went on to score both the radio and TV adaptations of The Hitchhiker's Guide to the Galaxy and incidental music for a number of Doctor Who stories in the early 1980s.

[citation needed] Described by BBC continuity as "a serial for older children", the TV series was freely adapted by Anna Home from a trilogy of novels by Peter Dickinson.

All tracks are written by Paddy KingslandScience fiction historian Brian Stableford lauded The Changes, writing that "Home's adaption of Dickinson's well-written novels is sensitive and artful.

[8] Young concluded: "Home was committed to creating a canon of youth television to compare with the great works of children’s literature, and The Changes deserves that comparison".