She's refering to the divine metal podcast. You gotta download the podcast to hear the songs from those artists. Not "literally" free music, but a free podcast that will let you hear a bunch of that stuff.
If you go to blabberdownload it is at the top of their page along with several other free "legal" downloads.
http://blabberdownload.com/
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"I used to be indecisive.......... Now I'm not sure."