In 1960 Derbyshire joined the BBC Radiophonic ... It’s one of the most famous theme tunes ever – but composer Ron Grainer had only written the very basic tune when he handed over the music ...

Back in the 1960s, there was no music software available ... as there are 16 notes in the theme tune. Change the length of each note or the spaces between them so that the timing sounds similar ...

a singer who found fame and chart success on the easy-listening side of the street in the 1960s, and who later became etched ...