I see I forgot the obligatory youtube link to the music.
It's four minutes long, but a good listen for anyone who likes Zelda music. For those who don't have the time, it goes like this: The first cycle plays when Link has just entered the abandoned castle foyer, and is a quiet, haunting version of the castle theme, with the ending notes of Ganondorf's theme thrown in at the end. The second cycle now has some ominous bass pervading the theme. The third cycle adds Ganondorf's music into the harmony, which begins to drown out the quiet castle theme. By the fourth cycle, when the player is close to Ganondorf, the castle theme has disappeared entirely, replaced by Ganondorf's theme. The thing that makes this piece work is how the corruption of the theme moves seamlessly with the player's progress, without having to start the piece again from the beginning or having to wait for the right point in the music to change - this is something that can only be done by MIDI music (EDIT: point stricken due to new information in subsequent posts).
Super World Cup Fighter II: Championship 2010 Edition
