In my humble opinion, the most popular music seems to be soft rock..think John Mellencamp (spelling?) type of music. I make my judgement by what is often played on the radio. They also like older music so if you are in your 30's it's great to hear music from your childhood and teenage years again played casually for no special reason. Aussie radio (at least in Queensland) doesn't seem to always bring in the brand new stuff. They are not a nation of kick-out-the-old-and-bring-in-the-new. And that goes for just about everything!! I feel that their taste for music is quite conservative and they do play a lot of Aussie music like Crowded House for instance. I must say that I've grown very used to radio here and I'm loving it.