This is from my 35mm print of Empire.
As for the Fox Fanfare… the fanfare was extended when CinemaScope was launched in the 1950s. It hadn’t been used for a while… but George Lucas requested it be brought back for the release of Star Wars.
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The big note you hear when the enormous STAR WARS logo smashes onto the screen is in the same key, B-flat major, and was designed to come in off the back of the Fox fanfare.So yeah, it is very attached to the Star Wars franchise.
I’m a huge music nut (especially when it is John Williams) but I didn’t know this, even though it makes total sense. So cool!