In the beginning, there were radio waves. Guglielmo Marconi, with his national and international morse signals, used them for communication before 1920, when voice broadcasting began.  In the intervening 105 years, radio broadcasting has spread across the glob,e disseminating information, playing music, describing sports and generally being a reservoir of culture. It’s an enduring medium but, in the age of the internet, nothing remains the same. The very notion of a schedule is almost passé.  The internet, with its ability to stream at request, has freed up programming from any formal structure. The digitisation of audio has allowed a whole…