I have a lot of ways that I think of brutal death metal for example.

Sorta Technical With Truckloads of Awesome Riffs
- Deeds of Flesh
- Vile

Brutal Death Metal Mixed With Technical Death Metal in its Traditional Sense
- Suffocation
- Defeated Sanity
- Decrepit Birth
- Nile
- Early Cryptopsy

Brutal as Fuck Bands That are Also Technical
- Disgorge
- Guttural Secrete
- Degrade
- Wormed

TECHNICAL TECHNICAL TECHNICAL TECHNICAL
- Insidious Decrepancy
- Flesh Consumed

Badass as Fuck Goregrind-ish Brutal Death Metal With Awesome Riffs and Hardcore-ish Vocals
- Putrid Pile
- Sexcrement

Brutally Awesome With Some Slams
- Devourment
- Internal Bleeding

SLAM SLAM SLAM SLAM SLAM
- Cephalotripsy
- Abominable Putridity
- Guttural Engorgement
- I could go on forever

I'd go on and list thrash, but my post is already long enough.

Personally I have:

Shit I'd never listen to. (Britney Spears, JFAC, August Burns Red)

Music I can tolerate in the bacground but wouldn't listen to deliberately. (Pantera, Lamb Of God, noisegrind, goregrind, pornogrind, most grind besides about 10 favs)

Music to listen to on a whim/regular basis. (Most of my stuff falls here, from Megadeth to Nile to Dark Funeral)

Intense music which is very mood dependant (Emperor, Darkthrone, My Candlemass, mostly bm/doom).

Oh come on dude, I know JFAC is deathcore, but you simply can't group them with Britney Spears.

My genres are "Music I like" and "Music I don't"
Music I like?
REAL death metal, brutaldeath, blackened death, and technical death... black metal, doom metal.
Music I don't like?
br00t4l scene shit, 3OH!3, and country.

I don't think you guys understand the purpose of my thread.

Nah, I would group them with the sound my emu makes when she is laying an egg. It's not far off, it's really not.

Lol.

I tend to catagorize folk metal based on where they are from, or where in the world they get their traditional influences from. If it's a band just ripping off Ensiferum then they are just norse-core to me.

I used to use the term "Dirge Metal" to differentiate the slower and more extreme forms of Doom Metal (early Cathedral, Winter, Funeral, Thergothon) from the more traditional, Blues/Rock-based style of Doom. Obviously those bands actually represent several different styles in today's reckoning, but back then (c. 1991/1992) the scene wasn't as variegated.

I don't tend to make up new genres for bands or anything, but I do mentally categorise them by who they're influenced by, like stuff that's copied Disgorge, or Slayer clones, and so on, which I'm sure is fairly common. also OP you have some awesome music taste

i kinda call some thrash bands melodic thrash(stuff like megadeth), folk metal by the regions they come from and i call some stuff modern grind when its the ultra abrasive grindcore that has become popular somewhat recently that doesnt really sound like old grind like napalm death.

Except people more or less agree that Norsecore = bands like Marduk, which sound nothing like Ensiferum.

Staying on topic, I differentiate vastly between modern industrial metal and oldschool industrial metal. Modern industrial metal rarely actually IS industrial metal, but when it is it's very different from bands like early Pitchshifter and Godflesh.

I also believe there are three seperate "styles" of industrial black metal. Theres the type that blends black metal/blackish riffing with electronic music styles (Void, 3, Neo Inferno 262). Then theres the style that actually relies somewhat on industrial sampling to back things up and constructs itself around that (Alien Deviant Circus, Vortex (Hun)). And then finally theres the style that relies almost solely on the playing style rather than backup keyboards/sampling, though it usually incorporates a little anyway (Thorns, Mysticum).

There are perverse times when "Hit Me baby One More Time" sounds better than BREE BREE SQUEEE.

I have subsubgenres.

I have Abigail Williams (1000 Suns, not Legends) and 1349 under black metal with a shit load of blast beats. Origin, Defeated Sanity, and Anaal Nathrakh under ridiculously fucking brutal. Cryptopsy(NSV and BMF) and Odious Mortem under brutally catchy. Immolation and Portal under punishingly atmospheric. Just a few of them. I listen to these subsubgenres when I'm in different moods. I also have Diablo 2 music, which is usually the chaotic kind of black metal like Gorgoroth and 1349, which suits slaying a shit load of monsters.

I've used the term Aggro Thrash Metal to distinguish Slayer, Kreator, etc. from stuff like Metallica, Megadeth, Anthrax.

Cryptic Death Metal: Convulse, Demigod, Adramelech, Demilich(basically all oldschool Finnish Death Metal), the Chasm, Incantation, Ripping Corpse, Portal. Anything that has that creeping, mysterious, ancient, or just haunting sound to it.

Alien Death Metal: Nocturnus, Demilich, Cosmic Atrophy, Timeghoul, Origin, Wormed. The basis on this one is just any band that has a lot of science/sci-fi oriented lyrics and they tend to have either a bizarre or just "cosmic" sound to their riffing. I'm not sure if I'd add Cynic to this list, they could be but they sound more Ethereal than anything alien.

I do the exact same thing. To me Slayer and Kreator are on a whole different level than Metallica, Megadeth, and Anthrax. They're so much more focused on speed and all-out heaviness. Except for I called it "Dirty Thrash Metal" rather than "Aggro Thrash Metal", but I guess they are close enough, right?

Close enough.
<--- this is what really matters when it all boils down to it.

Edit: maybe we should refer to it as ":headbang: Thrash Metal"

I often find myself using the term "punkish speed metal" in order to differentiate bands like Motorhead, Venom, and Tank from stuff like faster Judas Priest and Agent Steele.

In other words, i differentiate between the speed metal that helped spawn thrash and the speed metal that helped spawn European power metal.

Six Feet Under - Stoner Death Metal

Blackened Industrail Symphonic Melodic Epic Power Black Death/Thrash Folk Stoner Doom Speed Heavy Metal:

Me. Ha that fucking awesome