This made me think there's more to the music than we thought so I inverted the last track...nothing.
Widen makes me think stereo width but I don't think there's anything you can do unless you sum it to mono, then hear something, then invert one/both, or something like that so I tried with that track and it didn't work either.
Summing one to mono and inverting it leaves us with what you'd expect, but I doubt Trent would want us to take it a step further and want us to invert that and keep inverting and summing lmao.
"INVERT MY SONG 52 TIMES." - Trent Reznor To 42 Entertainment.