Frygoon | Mega Man X OST - T08: Demo (Variable X) @Frygoon | Uploaded March 2016 | Updated October 2024, 1 hour ago.
And this isn't officially called "Variable X" either.

From soundtrack: Capcom Music Generation - Rockman X1~6
Original title: DEMO
Original track: 08 (Disc 1)
Composer (track): Setsuo Yamamoto (Credits: Setsuo)

Mega Man / Rockman © CAPCOM


Soundtrack provided by: The Mega Man Network (Music Archive*)

*Source is down as of this writing.