Knowing how the general population is, a lot of you hate metal, let alone death metal. But is death metal simply about who screams in the most beastly way and who can play fastest and crappiest? Hell no, there's a lot of technical considerations when it comes to death metal, so don't complain and listen for the following.
The most noticeable thing for many people is, of course, the singer. How can you even understand the music if you can't hear what the singer says? It's quite simple: since it's really hard, just enjoy it. The fact that he (sometimes she)'s singing like that means that it probably took them years to master. If you don't believe me, try it. There's been a few frontmen who ended up bleeding from their throats, so appreciate that, you bastard.
As for guitar, well, this is probably the most technical genre for guitar after jazz. Why? There's a lot to learn if you want to play death metal. Just like a vocalist, a guitar player has years to endure to be able to play death metal. You have to be able to sustain speed, wail on the guitar, do things like sweeping, etc., and it's probably even harder for bass players; they do almost the same things, the difference is that the bass players can't lose their rhythm and the strings are way thicker.
|Just look at any video by Meghan the Metal Queen'|
She will beat your ass any day of the week on guitar.
Now, listen to any death metal song and you're going to immediatly notice the drums. I'll be damned if you don't think the drummers rock. It's probably the hardest thing, it's consuming both physically and mentally. In all the metal concerts i've been, the most tired member at the end is the drummer.
Considering all of this, listen to a song and you will notice, it seems hard to play. Yes, it is. I just fucking told you like a minute ago. That's when you will notice all the effort that goes into playing that. I will leave you a small, yet comprehensive list for death metal/similar bands so you can listen well.