Jimmy Eat World - "Goodbye Sky Harbor"
-- It took an entire reel of tape to make the 16 minute song
[More:]From the 1999 album Clarity
, it's an amazing song that changes form a couple times but never gets "jammy,*" from a band that I would otherwise consider to be pretty emo back in the day.
*At least, as I understand jam band music to be, but I could be wrong on this count.