Bingowings said:

But the the "Here They Come" strike on the soundtrack of every current version of Return Of The Jedi would indicate an swarm of TIE fighters about to shoot up Jabba's sail barge going by your line of reasoning (I'd remove that too).

Blame Fred Steiner for that.

I have said this before, Here They Come, is a Concert Arrangment of Tie Fighter Attack (Commissioned by Charles Gerhardt for his recording of the "Star Wars Suite"), which heavily utilizes the rebel fanfare (http://upload.wikimedia.org/wikipedia/en/c/ce/Rebel_Fanfare.MID)

The End Credits also uses this theme

Williams has done this plenty of times (TOD, KOTCS etc.)