I decided to go against my usual inclination to post something by Led Zepp or another classic act, and instead I'm posting something by one of my favorite current folk rock bands (urban folk, indie folk, whatever), The Mountain Goats. They're wonderfully simple, sometimes lo-fi, and they've got a great sense of humor about them. They're often quite pessimistic, as well.
Here's my favorite song by The Mountain Goats, "Cotton."
Don't mind the boring video. Just pay attention to the audio. Embedding was disabled for this video, so I had to just post a link.
22 medium-jumbo frets, 3 mini humbuckers, 2 single-coil pickups, and 6 steel strings of pure sex.