Basically he takes a bunch of delays set to one step and 1/8 step delay. When you add a bunch of them in a row then make a feedback loop you can get an infinite delay of whatever length you want. 1 delay = 1/8 note more in your loop.
I just love revisiting this actual gem. Not only is one machine powering the whole song, the sound also just invokes a feeling of loneliness and being by yourself. This song is truly Lonesome.
i agree with what client said way back in the comments;
this honestly shows how much potential one can put into a track- we need to stop being afraid of being different and LITERALLY go beyond the limits- and holy dang, i've already seen stuff like sila, rain, theclient, vizil, etc's tracks break through the usual AT limit- and man this just inspires me in wanting to do the same.
seriously, so many emotions done through just ONE instrument that makes me feel like im nostalgia heaven.