What I'm listening to today: "The Day Of Opening The Tomb", Aural Holograms
This is a 23-minute recording of atmospheric drone ambient, from 2008 and a genre somewhere adjacent to black metal. Metal sounds and distant clanking, sounds that could be wailing or maybe just wind. The YouTube thumbnail actually summarizes this track better than I could. As a connoisseur of structured humming noises, the 23 minutes I spent listening to this were very high-quality ones.