I don't know if this has been discussed before, but it is about six hours of ambient electronic music depicting six stages of descent into dementia.
https://thecaretaker.bandcamp.com/al...he-end-of-time
It is some of the most unsettling music I have ever heard. It is also quite beautiful and emotional in parts, but I don't know if that is just the benefit of me knowing the concept which lies behind the music.
It begins nostalgic and welcoming and ends as bleak as a weathered concrete slab in a field as dreamlike flakes that are not quite snow fall all around it and you.
Here is the album on youtube:
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