Not too long ago I was listening to the song "Coconut" by Harry Nilsson. Though I'm well familiar with the song I was struck at how well constructed it was, with just layer upon layer being added up to this much bigger cacophonous sound than it start as. Just really subtle building. Lots of songs will do a stripped down verse, add something obvious on the next one, and build in a way that just isn't quite so smooth.

So I'm curious about other songs that you think of as building slowly, or subtly, up to a much larger sound.

Also drop lists.