There is no audio in the flash itself, it was streamed.
Audio Locations:
http://www.mspaintadventures.com/storyfiles/hs2/00253/mspa_harlequin.mp3
http://www.mspaintadventures.com/storyfiles/hs2/00253/wind.wav
http://www.mspaintadventures.com/storyfiles/hs2/00253/afterthought-showtime_piano.mp3