The No Age remix (b-side) of the Fudged Up song "No Epiphany" (a-side).
It's...uh, well, it sounds like they had fun doing whatever it is they did...
Kind of sounds like an instrumental sonic youth noise jam (think end of "The Diamond Sea") with the occasional hardcore screams thrown in.
File it under "oddity" than "good" or "bad".
(my taste in bedtime music is weird)