OK, I think I managed to get this working!!

Run the game, and you should hear the "Sheep Goes Right - Level Complete" sound playing over and over and over.
This is in fact an audio stream.
This first test is for .wav only, so I left the "Data/550/TestStream.wav" as just a small little sample, but if you want to try switching it out for some actual music, simply replace that file.
Audio must be in .wav format, though.

Be sure to let me know if it does/doesn't work for you.

You can Download Stream Test here.

As always, thanks for testing!