Death Metal is also separate into very different sub genres, including Old School Death Metal, Brutal Death Metal, Technical Death Metal, Slam Death Metal, Progressive Death Metal, Melodic Death Metal, Blackened Death Metal, Symphonic Death Metal, Deaththrash, Deathgrind, Crust Death, Death Doom, Funeral Doom, Ambient Death Metal, and many many more.
Death Metal in the mainstream world is often times dismissed, and considered talentless, and a less valid form of music. This is completely false. Death Metal is far more technical than the popular music hitting teenagers nowadays, and has many more musical characteristics than their music. Death Metal is never meant to be mainstream, which is a very good thing, so corporations will never destroy the genre by pissing on it for teenagers to enjoy. They have already tried with Deathcore, a genre that fuses death metal and metalcore, but that has not destroyed the death metal scene yet. In fact, it has made the brotherhood of death metal stronger than ever.
Also a style of music whose detractors refer to as "satanic" or "evil," despite the fact that the vast majority of them either have never actually heard any death metal.
music that sounds great to the ears and soul.
music that emo kids claim to listen to but in reality can only take slipknot
emo kids being massacred and castrated and being raped by the power that is nile.
Song structure is typically like classical music: It's almost non existent. Melody changes ever few seconds, drums change on a dime, and singing (or growling, pig squeals, screaming, etc.) often pops in and out.
Changing melodies typically make death metal less memorable to casual fans, which is why you don't really see it on MTV (Well, that and the death growl vocals creep people out).
There is also Melodic death metal, where the growl is replaced with a scream, the melody doesn't change as much, and keyboards are typically added, and deathcore, which is a fusion of hardcore and death metal. These genres are sometimes criticized by death metalheads for changing true death metal.
Melodic Death Metal: In Flames, Dark Tranquillity, Detonation
Deathcore: Job for a Cowboy (early), Despised Icon, I Killed the Prom Queen
If you listen to death metal and all you hear is noise and random banging of drums, you don't deserve to listen (or criticize) it.
(insert insult here)kid: What are you listening to?
Me: shut up I'm listeng to a band called Behemoth.
(insult insult here)kid: OMG you listen to death metal your a fag
Me: Really? Try to insult Death Metal, it rapes the hell out of your music.
(insert insult here)kid: Fuck You
Me: (continues to listen to the greatest music on earth)