I was surprised with how many metal guitarists took up jazz, harmony and classical guitar lessons. I like this approach, because once you figure out what harmony and composition is about, your music does not sound like scale/speed excercises. In addition, there's less propability of your song sounding like a cliché that other ten thousand bands play :-)

Are there some guys here who play metal/rock and educate themselves in harmony, jazz or classical music? Do you benefit by the education?