Something I noticed about Arcadion (spoilers)

So I was wracking my brain because Arcadion 4's theme reminded me of something and I finally pinned it down:
listen to the first 12-ish seconds of the theme: https://www.youtube.com/watch?v=_htiXfLqXxU
now, listen to this timestamp, 32 seconds in of the four fiends theme: https://youtu.be/9fBOQdbWcRY?t=32

Sounds familiar right?
I now have a crackpot theory that this might be intentional foreshadowing.
We fought the FF4 four fiends in endwalker, yet the OG four fiends, Tiamat, Lich, Kraken, and Marilith haven't been properly fought. Yes Tiamat is an NPC, and we fight a kraken a few times, but not the bombastic classic FF bosses.
Now, as many of you know, Dawntrail, specifically the areas of heritage found and solution 9, reference FF9 heavily.
Now, which is the only other mainline final fantasy game to feature the original four fiends as bosses? FF9
I have a feeling either tier 2 or tier 3 of Arcadion may have fighters that use the souls of Tiamat, Lich, Kraken, and Marilith, or at least their counterparts from the unlost world. In fact it is probably more likely they won't be directly referenced by name but by thematics and design.

It doesn't really sound similar to me. If anything, it sounds closer to the start of the (remake) boss theme of FF1: https://www.youtube.com/watch?v=o7j9ibtAvmo

But this didn't play during the fiend battles in that game. I think it makes more sense for them to be included in FF1 themed content anyway.

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Originally Posted by Andevom

It doesn't really sound similar to me. If anything, it sounds closer to the start of the (remake) boss theme of FF1: https://www.youtube.com/watch?v=o7j9ibtAvmo

But this didn't play during the fiend battles in that game. I think it makes more sense for them to be included in FF1 themed content anyway.

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I can see that for the remake boss theme yeah
But as per my OP, the original Four Fiends also show up in FF9

I...honestly don't hear any connection between the two pieces linked by the OP. And the complete "Four Fiends" theme is already remixed and used in the game during EW (Barbariccia fight). I really can't fathom any connection between the Arcadion and the Four Fiends from FF1.

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In fact it is probably more likely they won't be directly referenced by name but by thematics and design.

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This I could see happening, but not really in any way because of the Four Fiends, just rather naturally including the four main elements that get included a lot throughout the game. We already have the four remaining parts of Living Memory dedicated to Earth, Wind, Fire, and Water. It's just a common theme.