Someone flying by in the firehose asked for the dirtiest metal we had. Well, how about highly radioactive metal?
If you haven't seen the Chernobyl series, it may be one of the most frightening things I've ever seen, mainly because of the music from Hildur Guðnadóttir. Every time you hear that low "brawwwwrrrrr" that is representing the radiation spreading.
Another example, with much more of the "radiation" motif I mentioned:
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^^ If you're looking for something genuinely creepy for your #Spooktober playlists, I think this fits the bill.