This track got added when the remake for Resident Evil 2 came out. One of the cool things they added was the ability to change the music to the original Resident Evil 2 music. Not only does it provide a lot of nostalgia for the original game, but it also has, arguably, better music. For me, this is one of the most iconic save themes in any game. Just see Ray react to hearing that music in the RE2 remake.
That said…. LOOK AT HOW GOOD THE REMAKE LOOKS!!!