The eerie, low-pitched singing saw drones that open "Two Headed Boy Pt. 2".
"Sailing Through" ends on a Careful With That Axe moment that actually made one of my friends - a hardened 4chan addict, by the way - turn white. It is utterly harrowing.
The first guitar strums in "Oh Comely" are innocent enough until you've heard the song through a few times. Then they become the most terrifying sounds imaginable. "I will be with you when you lose your breath," indeed.
Not to mention that "April 8th", the song that precedes it, has an extremely ominous feel and transitions into "Pree Sisters" without warning.
"Invent Yourself A Shortcake" is an early set of Neutral Milk Hotel recordings that was self-released in limited quantities during the early '90s. Much of it consists of field recordings and sound experiments done by Jeff Mangum, many of which are quite unsettling.