I was watching (one of the) Special Edition versions of Star Wars: A New Hope and noticed that the music playing during Vader and Obi-Wan's lightsaber duel on the Death Star sounded unfamiliar.
In particular, there was choral singing and the song sounded similar to Duel of the Fates from the Phantom Menace soundtrack, which plays during the final fight between Obi-Wan and Qui-Gon and Darth Maul.
Was the music for the Death Star scene in ANH re-scored to more closely match the music from a similar scene in TPM, or am I totally mis-remembering things? I'd check this out myself, but sadly I do not have a copy of the original cut of Star Wars.