Such is the state of A/V archaeology when all we have access to is consumer releases ;)

That German track is really what's making this all so tricky for me. Certainly there are explanations for why it would be on the German 35mm prints and not some of the other languages, and then show up again for all of them later on the THX remasters, but they all involve some unnecessary logistical contortions. I'm attracted to the simplest explanation because it's simplest, but that's no guarantee at all that it's the correct explanation...

And seriously, if you had that music in your movie, would you expend a lot of effort to try to remove it before it came out on video? I sure would! ;)