Son's gender change inspires Thomas Dolby song
18 May 2012 Last updated at 02:34 ET
http://www.bbc.co.uk/news/health-18113566 (http://www.bbc.co.uk/news/health-18113566)
Music producer Thomas Dolby has described how one of his latest songs, Simone, was inspired by his son Harper.
Harper was born a girl but, following surgery and hormone treatment, changed genders.
Together with his parents, Harper Robertson described his journey to the BBC's Graham Satchell.