Link spam coming, sorry about this folks. I'm trying to match with the metal going on in here. I'll try to list subgenres correctly (Metal is a very large umbrella term, after all).

Jazz/Prog Metal:


Avant-Garde Metal:


Power/Neoclassical Metal:


More Avant-Garde Metal:


Avant-Garde/Swing Metal (Yes, it exists)


Prog Metal:


Power/Symphonic Metal, 80's Pop:


I've got more to add (in really anything), if anyone wants it.