i dunno if you guys hav seen this yet. i saw it when i was starting to realize id rather play piano than guitar, but it introduced me to alkan.
http://marshallharrison.com/free%20videos/AlkanEdgeMCH1.wmv
it still sounds better on piano tho, thats why i decided to play piano instead. even with mad skillz like mharrison, these hard piano pieces still wont sound as badass as on piano.
(ps: i have a guitar tab of this whole etude if any1 wants it. i did it myself becuz i dont like mh’s fingering)
for other vids http://marshallharrison.com/video.htm
this guys a fukin beast on guitar, he sweeps like a madman. his piano playing is sketchy tho. check out the bizet horowitz performance his godowsky-chopin et 10/1 isnt as bad tho.