I have bumped this but there are 2 things I wanted to raise from studying the music and comparing the footage.
1. If the fanfare from "the imperial probe" was to introduce echo base. Then that would mean at one time the footage was laid out that way. The probe droid arose from the crater and then we cut to Han riding the taun taun into the launch bay. So this would have happened after Luke got dragged off by the Wampa. So this means that this theme in the restored music video got scrapped and re-written out but they still used a score from arrival on dagobah. Probably because they shifted the probe droid to an earlier point in the footage.
2. Hoth Search unused score... Now I am not 100% about this but I said earlier that the way John Williams scored these scenes was pretty awful. I am now going to retract that statement and say that the music that is unused was scored to luke being chased by the Wampa through the snow. It sounds bad with the footage because it was never intended to go with this footage in the first place. Or it's the Probe Droid Vs the Wampa scene which is story boarded.
That is quite important in so much as the cues that have been demonstrated in the restored music video are totally wrong because they never went with this footage originally. only a small section matches the film properly. That is the only explaination I can give but if it is just bad scoring then well no wonder it got cut out.
The rest of the videos seem to be spot on accurate apart from these 2. I don't think any score was written for Han on Taun Taun hence why it remains without music. But if the themes in that piece of music was meant to be a menacing snow creature chasing luke.. Then that also gives me another idea....