Very interesting readings about the Anthology !!! :)
C. Mallone, the specialist about the Star Wars recording says:
The Empire Strikes Back was largely sourced from four-track ¼” tape copies containing the edited filmmixes (as three channels of music with one track being a 50 Hz pilot tone for film synchronization)...
... When Lukas Kendall, the author of the Anthology liner notes says:
Most of the tracks from Empire in the box set come from the original session tapes found under a pile of shit somewhere at Lucasfilm (...) these 4-track tapes were able to be mixed down by Ford Thaxton and Bill Wolford up in Seattle. So the mix used here is neither the film mix nor the album mix, but rather a new mix.
... As says Ben Kenobi: "the truth depends on our own point of view" !
Now I understand better my headaches with the stereo and why I have the feeling that I hear the orchestra in diagonal on many tracks from the Anthology ! I think there must be some troubles with the center channel.
To notice, the only two filmixes used on the Anthology are "The Rebels Escape" and "Jedi Master Revealed" (wich Mallone called "City in The Clouds" part 1, what may lead to misunderstanding).
Possible I add the second film mix in the bonus tracks then.
That's all folks.