Dorsey
Banned via Warnings
i'll serve as genre police for a sec 
the _foundation_ of metal was set by led zeppelin, of course. As a following act, bands like black sabbath, judas priest, and iron maiden continued this role until finally, metal was created by 4 bands all within the same time period. These 4 bands, that defined "metal", are slayer, metallica, anthrax, and megadeth. Of course, metal then later took a slightly different definition and this genre was coined "thrash", however the change wasn't significant. The songs were still written and organized like thrash metal except the fast rhythm was toned down somewhat.
Also, I gotta point out that the label "metal" has nothing to do with vocals. I, an avid metal guitarist, base very little of my taste on how well a dude can scream. Vocals are an instrument too though, and if I listen to someone BECAUSE of their vocals, they should ACTUALLY have a good voice. But what I'm getting to is that bands that scream and hit heavy DROP TUNING(the newblet way to play metal, way easier to hit chords but sounds worse...) chords are not metal, in any way, shape, or form. It's a totally different chord progression and style. That's "hardcore". There's actually a stronger correlation between metal, rock, and blues than there is metal and hardcore... But, not ALL hardcore lacks guitar theory and performance, just about 95%
Architects is a hardcore band from the u.k.... their guitarist owns w/ tech. skill and song writing. Also, usually 'metal-core' bands are bands that use drop tuning, but organize their songs like a standard-tuning metal song....for the most part anyways. This is why hardcore and metal-core are comparable. Consider metal-core as the bridge between metal and hardcore, just as the title suggests.
I'm no fan of avenged sevenfold really ya'll, but the chord progression on all of their songs copies that of all 4 of these bands, especially metallica. (Chord progression can be legally copied, melody cannot). So, you really gotta call avenged sevenfold some kind of nu-metal, even though their style is totally different and even kind of wack.
Anyway, here are a few vids of what I feel exemplify a contemporary definition for metal:
in north america:
http://www.youtube.com/watch?v=bnhDVvfGG80
http://www.youtube.com/watch?v=X31pMcnqZMo
in europe:
http://www.youtube.com/watch?v=InSF9FL86Dc&feature=related
http://www.youtube.com/watch?v=Y51Dodj2EPg
http://www.youtube.com/watch?v=i30KyAYmLq0
^(for those who don't know, nevermore's guitarist aka Jeff Loomis is known as the best guitarist in metal..)
edit: porcupine tree is the **** mask, i like them too. they're a very unique band w/ varied styles though so you can't really place them in a genre.
the _foundation_ of metal was set by led zeppelin, of course. As a following act, bands like black sabbath, judas priest, and iron maiden continued this role until finally, metal was created by 4 bands all within the same time period. These 4 bands, that defined "metal", are slayer, metallica, anthrax, and megadeth. Of course, metal then later took a slightly different definition and this genre was coined "thrash", however the change wasn't significant. The songs were still written and organized like thrash metal except the fast rhythm was toned down somewhat.
Also, I gotta point out that the label "metal" has nothing to do with vocals. I, an avid metal guitarist, base very little of my taste on how well a dude can scream. Vocals are an instrument too though, and if I listen to someone BECAUSE of their vocals, they should ACTUALLY have a good voice. But what I'm getting to is that bands that scream and hit heavy DROP TUNING(the newblet way to play metal, way easier to hit chords but sounds worse...) chords are not metal, in any way, shape, or form. It's a totally different chord progression and style. That's "hardcore". There's actually a stronger correlation between metal, rock, and blues than there is metal and hardcore... But, not ALL hardcore lacks guitar theory and performance, just about 95%
I'm no fan of avenged sevenfold really ya'll, but the chord progression on all of their songs copies that of all 4 of these bands, especially metallica. (Chord progression can be legally copied, melody cannot). So, you really gotta call avenged sevenfold some kind of nu-metal, even though their style is totally different and even kind of wack.
Anyway, here are a few vids of what I feel exemplify a contemporary definition for metal:
in north america:
http://www.youtube.com/watch?v=bnhDVvfGG80
http://www.youtube.com/watch?v=X31pMcnqZMo
in europe:
http://www.youtube.com/watch?v=InSF9FL86Dc&feature=related
http://www.youtube.com/watch?v=Y51Dodj2EPg
http://www.youtube.com/watch?v=i30KyAYmLq0
^(for those who don't know, nevermore's guitarist aka Jeff Loomis is known as the best guitarist in metal..)
edit: porcupine tree is the **** mask, i like them too. they're a very unique band w/ varied styles though so you can't really place them in a genre.