Sorry, this link might be broken.

http://www.abc.net.au/radionational/programs/allinthemind/songlines-indigenous-memory-code/7581788?section=arts-culture

The website may no longer be active, or the URL of the page may have changed.
It is possible that either https://archive.org/web or http://pandora.nla.gov.au have archived this content.

Thank you.