>Also...I don't know what HTTP is supposed to be doing
>with audio files. I see the file sent to my browser as text
>proceeded with text that looks like it should be headers,

That's pretty much what you should see, except that the headers appear to be broken in v116 -- fixed for v117 (out shortly).

So listen to streaming audio with v117, just configure the "mime types" or "helper applications" in your browser to feed data of type "audio/mpeg" to your favorite streaming mp3 player. Many browsers will do this automatically for you.

Cheers