19 minutes of all the ambient sounds that are currently playing in the Nether. All files were taken from 20w15a snapshot but as far as I know it’s all the same in 1.16 release.

I didn't edit any sound files so some of them have quite long "soundless" parts. I'm sorry for that.

Each biome has a unique set of sounds.

Timestamps:
00:00 Basalt Deltas
04:17 Crimson Forest
08:00 Nether Wastes
11:01 Soul Sand Valley
15:07 Warped Forest