Reminds me of The Antikythera Mechanism by BT (This Binary Universe) [0]. Each "loop" sample isn't because it's subtly different from the previous one, and when a phrase loops back again, the context changed, creating progression all along the song.

I seem to recall I read somewhere that (part of?) the album was painstakingly made using Supercollider [1], but can't find a proper reference.

[0]: https://www.youtube.com/watch?v=dKcAfkkipKU

[1]: http://supercollider.github.io/