Before it started using blastbeats, it was crust punk yes

What's the difference between crust punk and non-metal grind with blastbeats besides the blastbeats?

So far as I know all the early grind bands, like Napalm Death, Repulsion, Carcass, etc were all crust punk + death metal. The Scum Side A lineup of Napalm Death even broke up because one of the members didn't like the metal direction the band was going (at least according to Mick Harris).

Not much... In my view, pure grindcore was just a more extreme evolution of crust punk -> Crust punk + blast beats.

crust punk + death metal + blastbeats?

Very early Napalm death didn't have much death metal influences, It's clear on "Scum", there's a bit more on "Feto"...

Carcass was never pure grindcore, it's was always more gore and "death metal"...

Then, it's old stories, things changed a lot since then, "pure grindcore" and "metal grind" mixed themselves so much that it's hard to notice the difference in 2016... Unless you're talking to punk "integrists" who dislike any metal influence.

But when did that ever exist for any length of time? Was it a scene that predated the more DM-influenced grind bands?

I know early, demo Napalm Death was considered crust punk, but I haven't heard any of that. Was it any different from Extreme Noise Terror, who were considered crust punk and not grindcore?

But they were still part of the same scene as Napalm Death. I'm not that up on the British grind scene from back then, but if Napalm Death and Carcass were contemporaries, does it really make sense to call them different genres when they were basically doing the same thing at the same time in the same place? Basically.

British grind was definitely derived from crust punk, as opposed to America where it came mostly from death metal, but they were still melding both genres together, just with different percentages.

I just think that grindcore was a genre that was basically as much metal as punk. Different sources were more one than the other, but it was always a combination of the two. Basically like death metal crossover.

You have a very metal view of the grindcore style (It's not a reproach, I have been like that for a long time)

Peopes who are very much into the old school punk/ hardcore/ fastcore side of the thing would disagree with your view... Some despise metal music... It's how it is :)

Perhaps every bands were called grindcore because there weren't many bands back then...

A nice exemple of early Grind/ proto grind (Just accelerate the stuff a bit, and it's pure grind) I hear no metal influence in that stuff.
https://www.youtube.com/watch?v=caJmgYOBf14

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