I left-clicked on it and it opened up in a new window and is playing just fine via (I assume) the Quicktime plugin.

And I'm using Firefox.

I don't know what problems people are having, but I would guess that it has to do with their helper applications.


EDIT:
Not the sort of thing I normally listen to, but it sounds pretty good. I imagine it sounding much better when you have the "lead" part mixed up in comparison to the backing track.