Confirmed my earlier post. I used SV to extract 1.aud but saved it as 10101.aud. The moment the intro movie starts, (the "Castle Daventry" scene), I got the baker's description instead of the music. Thus, if you were to identify the number for Graham's cry, extract it, and replace it (minding of course the file header data such as length) you're set.
Edit: turns out there doesn't seem to be any length data in the aud file itself.
Also, the whole thing where Mordack appears and spirits away the castle? Skipped. The baker's description is just long enough to have "Castle Daventry" appear, and it skips directly to Graham walking around in the woods.