CPCA-1096~7: Devil May Cry ORIGINAL SOUNDTRACK

[BlazingAbyss]

Originally Posted by DanteLectro

AFAIR both versions are used in the game: the "Blade Appears" version is in a cutscene introduction to the Blade enemy in the backyard, the "Original" version is used in subsequent battles with Blades, Sin Scythes, maybe others too.

I can't recall offhand myself, but judging from a couple videos that I just took a quick look at I think that you're correct.
Granted, the use of "Original" in the title seems slightly misleading seeing as it isn't the first version of it that you'll hear, just the one used for most battles following the Blade introduction.

[DanteLectro]

I think they meant "Original" from the composer's perspective: Ueda probably composed that first, then made a different intro segment for the Blade cutscene.
And I've just realized that the Original has its own unique intro segment that's not in the Blade version.

[BlazingAbyss]

Good point, that actually makes sense. Also, yes, as I mentioned before in addition to being slightly longer the intros are different.