I've had friends for years tell me I'm goofy for saying that metal power chords are very similar to a classical cellist or violinist just rocking back and forth... seems to me I'm being proved correct.
		 
		
	 
While I'm totally unfamiliar with this music, I wouldn't use that example!  Power chords are just parallel fifths, right?  If so, that is probably the most known thing of all to avoid with CPP writing.  I suppose you might find more parallel fifths with quintal music, like maybe barber shop quartets, and I guess minimalist music.  Ok, I guess in the reeeeallly olden days there was more usage of P5s.  
In classical music, when the same chord structure/form is moved in parallel, it is by far most of the time done in 3rd and 6ths.  If a triad, it's done in the first inversion (ex. CEG becomes EGC), which is also called a 6-3 chord.  Yep, it comprises of a 3rd and 6th on top of the E; no more parallel fifth.  
Even putting theory aside, I have the impression that the classical musicians who I have met who really loved rock music favored more complex riffs, ostinatos, fills, really just about anything that is more creative as background than a power chord.  
Eh, I just wanted to chime in on that.  Of the videos posted, if anyone has an opinion on which is the most classical of the bunch, I'd be interested in knowing.