none said:
... Reminds me of the videos of the recording session videos where John Williams is leading the orchestra with the movie being played with the scoring marks for tempo (white bars which go across the screen) and other marks (large white circles) for moments he's set up to hit. You can see a little of that in: (at around the 2:50 minutes in)
...
I'm glad it reminds you this, that's exactly the point... I mean: to see how it has been scored - despite unavoidable film versions edits, whatever they did after (reply I adress in the same time to Sadelaire's complain I read a few posts back).
I never spotted the white bars, or rather didn't noticed these were linked to the conducting. I recommand to watch Part 6 of this documentary to anyone who is interested, for the "Mynock Cave" recording sessions.
D_J, huge thanks for the conveniences you offer, making this available so easily ! :)