Hell yea, it changes tempos and mood many many times. It goes from growling and loud electric guitars and suddenly switches to a nice clean voice with acoustics. I should've mentioned that in the beginning but I forgot. Surprisingly there are only about 3 or 4 riffs that repeat but they are seperated by a good 5-10 minutes of playing. It's really an interesting song because every piece fits in so well with the one before it. After I finished listening to it once, I considered Opeth songs not as long lol.