Post it, and no bullshit top 5 lists, just one riff.
And keep it simple to understand, "2nd bridge riff, 3rd repetitoon" is not OK, "5:50 of Deliverance" is OK. There you go, thats my answer. So no fucking puzzles.
The Moor, first riff or Heir Apparent, the last riff. They are the first one's to come to mind. (And don't tell me that you can't find them, cause this puzzle is very, very, very easy)