In this riff, we're actually playing the harmonies to the previous lesson's riff. So it's pretty much the same thing as far as the rhythms and techniques go, just played on different notes.
One key difference though is that the notes on the A string are now played as sixteenth notes, as opposed to how they were played in the last lesson as eighth notes.
Okay! Now we have to put closure to the "Pending Closure" tutorial. :-) Congrats on making it through! Make sure you have patience when you practice these riffs and don't speed through them. Speed is nothing without clean technique.