In this video you'll learn some of the basics of HEAVY METAL SUBGENRES.
I put a ton of effort into this video and research for it, so I really hope it gets some attraction xd.

Note: I couldn't describe all of the subgenres, because there is TOO MUCH of them.
Note2: I had to replace the song for Industrial metal, due to copyright, but the picture stayed the same.

I also plugged in my playlist a bit lol.

--video contents--
0:00 - Intro
0:28 - Heavy Metal
1:03 - Proto-doom
1:36 - NWOBHM
2:10 - Speed Metal
2:45 - Thrash Metal
3:13 - Neoclassical Metal
3:44 - Power Metal
4:09 - First Wave of Black Metal
4:33 - Doom Metal
5:06 - Death Metal
5:39 - Black Metal
6:28 - Progressive Metal
7:27 - Brutal Death Metal
7:48 - Blackened Death Metal
8:17 - War Metal
8:44 - Progressive Death Metal
9:06 - Melodic Black Metal
9:39 - DSBM
10:00 - Melodic Death Metal
10:27 - Symphonic Metal
11:00 - Grindcore
11:27 - Goregrind
11:55 - Groove Metal
12:32 - Industrial Metal
13:07 - Avant Garde Metal
13:43 - Gothic Metal
14:16 - Alternative Metal
14:44 - Nu Metal
15:17 - Rap Metal
15:43 - Folk Metal
16:06 - Stoner Metal
16:30 - Metalcore
16:58 - Melodic Metalcore
17:27 - Deathcore
17:58 - Djent
18:29 - Viking Metal
18:59 - Pirate Metal
19:36 - NWOTHM
20:05 - Outro