WYSIWYG Sorry I've not been able to respond sooner. Some background, on the basis you have limited knowledge of the Australian scene; apologies if this is all old hat.
The ABC in Australia is an institution like the BBC in Britain with a reach that is geographically similar to PBS in the US. Radio National http://www.abc.net.au/rn/ is that part of its network that some might say deals with "the serious stuff" that people who like to exercise their minds would seek out. For those with an interest in the traditional or folk (in the broadest sense) aspects of music, the following might be worth seeking. Music Deli is the only one of them that concentrates on such fare but programs of the others have all dealt with aspects of it in the recent past.