Originally Posted by Kirnupiima
I disagree. Electronic music for starters isn't limited by conventional instruments as metal usually
is. The potential for variation only begins from there
That's true, but the space inside what qualifies as metal is absolutely massive, and there's plenty of room for unusual instruments - organs, saxophones, tin whistles, etc all make regular appearances. Pretty much the only thing you need to be metal is to have a guitar in there somewhere.
Admittedly I'm far from an authority on electronic music, and most of what I have is from the early to mid '90s when techno and electronica were at their peak of popularity, and arguably quality as well, but what I do have can be put into pretty well defined categories that are not hugely different, certainly not to the level that Ayreon is different from say, Pig Destroyer.