Genre Labels

Deathcore, Metal, Heavy Metal, Death Metal, Grindcore, Hardcore.
What the hell? Do you really think there's a difference?

 

Yes.

But not with like punk metal and that other shit. I am saying there is a difference between the raw sounds of black metal compared to the sounds of Death metal

 

And the topics in some metal tend to change not only the sounds

 

2112 is right, they're screaming about death in one song, and screaming about the want someone else dead in another.
I'd hardly call metal music, anyone can scream..
The muscisians on the other hand are very good, but singers of 'Metal' bands can hardly call themselves singers..

 

That's metal also.

 

I don't really understand what you're asking. If you're meant to be asking whether the genres are different, I'd sure say so.

In terms of instrumental ''heaviness'', for example:
Metal < Heavy Metal < Death Metal