Album length remixes / edits?

This might not count, but there's an Autechre track that could fit in here; I'm presuming the 58 minutes of Perlence Subrange 6-36 has some kind of remix or similar relationship to Perlence Subrange 3, and the other tracks prefixed Perlence on the same ep. However, it is Autechre...

https://www.youtube.com/watch?v=-7AGmLgpbmY

It's just a really, really slowed down version of one of the loops for 58 minutes. I've listened to it a couple times (it is very relaxing) and there are a few moments of "wait, was that there before?" but I think it's kind of stretching what "album-length" ought to mean

I got the idea to make a version of The Cure's Six Different Ways, in six different ways. Cover, disco version, dub version, etc. Mixed together like a Boredoms ep.