This is a great song...but the vocals ruin it for me :(. Opeth is the same for me...the music is awesome, but I can't get past the death metal cookie monster vocals.

The instrumental totally puts me in mind of some kick ass Dream Theater from the late 90's early 2000's. You are right...it's a tasteful use of a sweep that adds to the music rather than just a "hey, look at me, I can sweep!".

I like the nod to King Crimson's Discipline in the beginning. DT and KC, pretty impressive influences.