So, I think that there're a few tracks in there that have small considerations that have always stood out to me, and I think that they depart a bit from the rest of the soundtrack.
Trail of Blood
This track is
Parasite Eve-like in how it's really horror creepy and atmospheric (especially because there's no battle music in the ShinRa HQ while this track is playing). It has this light drumming that would work WONDERFULLY with the sort of heartbeat effect that
Beyond the Wasteland uses -- in fact, there are a lot of parallels between
Trail of Blood up to 1:45 in that track. While it would work well as an instrumental track, between
Trail of Blood's 1:00 - 2:00 marks you get some of the electronic effects (which, while it turns to an upbeat chase track after 1:45,
Beyond the Wasteland has with electric guitar). It even builds up to these little haunting near-vocalizations before it loops back to the haunting strings instruments. Keeping the mix of all of those things and slowly creeping them in to the soundtrack is pretty important, but it's one of the ones that I think that sits VERY strongly in the wheelhouse of what we've seen them pull off in the past for capturing the sort of horror fear that this piece invokes.
Who Are You?
This is the "Cloud is going crazy" music. As much as it isn't really a theme of any sort, it's one of those tracks that the second it starts playing it's straight chills to the spine and a knowledge that you're seeing and hearing things that aren't really there. It's not horror like
Trail of Blood, but it's a more visceral and empty haunting fear. For me this was THE defining track for Cloud early on -- especially because of things like the Honeybee Inn scene:
It's paired with other tinnitus-like ringing and surreal sounds while Cloud is watching other versions of himself in the room, and blacking out. These are the scene's where I'm really interested to see how they handle the visual aspects of Cloud not knowing who he is, and half-remembering Zack as himself, and this is a piece that uses its echo and emptiness to reinforce the feeling of Cloud's blurred personality.
Then it finally culminates into this:
Who Am I?
This is the track that plays while Tifa's roaming around in Cloud's Lifestream shattered mind. What's important to me is that we get the theme that you (can) play on Tifa's piano during the flashback playing in a rather creepy electronic tone, but in the background is the continual up and down of an old, slightly out of tune piano, all with the sort of Midgar-like electronic bass undertones.
It's mostly unsettling because it's discordant and a little familiar, but not right. It's an incorrect mixing of themes that underscores the fact that Cloud isn't well, and he's blurring things together. It's one of those tracks that has a lot of little things that piece it together that are actually important from a compositional standpoint that have to play against the way that the other main themes and tracks are composed because it borrows from them.
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