Heart, Hope and a Steely Determination: Dolly Parton's Musical Legacy

In 1980, Dolly Parton was filming her first Hollywood movie, 9 To 5, and between scenes she had an idea for the tune that would become the movie's theme song. But her guitar was banned from the set - so she made the beat by strumming her acrylic nails together. The sound, she realised, was just like the typewriter used by her character, a married secretary who is constantly belittled and sexually…