Tiny Noises

I've come to the realization that the best part of songs are the small things, the tiny noises that you don't necessarily hear the first time through. They're like those undertones in fine wine, only detectable to the trained palette; the novice tongue tastes the grapes, yes, but the more refined tongue, the more aquainted tongue, detects the smoky oak of the wooden barrel that held it; the spicy tobacco of the dirty men who pressed it, smoked in those hours between pickings; a dash of vanilla, thrown in to meld with the dying fruit.
Or so I've heard. Not that I'd know, of course. That'd be illegal.
Let me elaborate a smidge, though. When I say the best part, I don't really mean musically or structurally per say (they layered two violins playing at opposite octaves over a synthizer!! OMG!!). I'm talking about those little things in the song that actually make you love listening to it. I have many personal examples.
My favorite part of "My Body is a Cage" by Arcade Fire happens about 3/4ths of the way through the song. For about two minutes, Win Butler has been moaning urgently about dancing with the one he loves, while the dirge-organ in the background grows incrementally louder. This is cool, I think, it's going to end up with a really nice cresendo. And so it seems, until a moment after the second verse, when a mountain of sound is vomited out, the moody organ replaced in a blink by a massive funeral march with what sounds like the most down-beat gospel choir in creation.
To be perfectly honest, my heart skipped a beat.
The little things are what propel a song, what make it worth listening to; I would never have lisened to Radiohead's "Reckoner" if it hadn't been for the techno-tambourine amazingness of its first minute, and The Crystal Method's "The Name of the Game" hooked me with perhaps the best opening lyrics of all time ("Listen all you mothafuckahs!").
And then there's the things in music that you aren't quite sure why you like. It may be a word, a guitar descent, a (God forbid) drum solo. But it sticks with you; whenever you hear that song later, even if its been an obscene amount of time since you heard it last, you can always pick up that one little part out of the whole sonic sturm und drang. At the moment, it's a verse in "Wu-Tang Clan Ain't Nuthin' Ta Fuck Wit" that does it for me; "Me fear no one, oh no, here come the Wu-Tang shogun, killer to the eardrum!"
I'm not sure why I like this verse. All I know is I can't get it out of my head.

In fact I'm a hard act to follow