You can try and force feed them the music, until they would sumbit to it.
I guess people from austrlia would have ordered at least 4> of CDs.
The thing about your music tastes it comes from your peers and commerical stuff on the radio. Let me emphasise a point. So if you get more of the word around to friends and maybe radio stations you should be able to pick up a bigger fan base then there already it.
For example group 1. like maticalla, so did I . Then group 2 came along and they liked dancy-trance stuff, so did I. Group 3, liked death-metal and hip-hop. And so did I (well not really death metal, but hip-hop)