Disturbing tracks in odd places

[BlodwynPig]

Listening to rather excellent experimental/vaporwave/ambient/darkwave album by someone going by the moniker Sapporo Dream, things took a dark turn with this track - at about 3:50, it goes all Twin Peaks backwards effects before the uneasy listening starts (not horrific, just vastly unsettling).

https://boguscollective.bandcamp.com/track/korean-house-of-pain-ft-demonjardim

Any other examples when a track or a song disappears into the bowels of mania? Or the other way around, dark albums/songs that have a release (at the end?)

[The Mollusk]

The distinctly unpleasant noisy shouty "Brick" with its big industrial hip hop beat at the middle of Alex G's otherwise dreamy experimental folk album "Rocket". I do really like the song and oddly I think it works slapped in the middle of the album there but it's definitely jarring and a brave/daft artistic decision.

I always thought the motorik almost Suicide-esque "Shoo Be Doo" on The Cars' "Candy-O" was a bizarre choice as well. But much like "Brick", it sits in the middle of the album and I think it works really well. I also think this track segues the two halves of the album well, it propels nicely into the more dynamic and adventurous second half.

[kngen]

Taylor Swift's unexpected flirtation with power electronics in 2014.

[Johnboy]

There's a track near the end of Fleet Foxes' Helplessness Blues album that has discordant brass on it that really pokes out and punctures the preceding mood.

I can't quite get my head round it, it always jars and I'm not averse to discordant brass generally.