Every Doctor Who fan should know her name, but most don't. Heck, I didn't even know it until yesterday, when I listened to a 45-minute radio play on BBC 7 called Blue Veils and Golden Sands, a fictional story of her life.
Delia Derbyshire was a composer, "a pioneer of electronic music who worked in the BBC Radiophonic Workshop for 10 years." Ron Grainger may have wrote the theme music to Doctor Who, but it was Delia Derbyshire who brought it to life.
Her story is rather a sad one, but inspiring in a way. Make sure you listen to the play at http://www.bbc.co.uk/bbc7/listenagain/monday/
And then check out her life: