The concept of "Mateship".

The wonderful TV series "Against the Wind".

Eric Bogle & John Munro
Colcannon
Judy Small
A lot of the beautiful songs that Martyn Wyndham-Read sings
The Bushwackers & Bullockies Band
Bloodwood
Wongawilli
Redgum
Jon English
The Borderers

And I'm sure I've forgotten a few that also merit mention..

Best wishes,

Bente