I still haven't encountered anything like it. I wish there was more.
Also: Global Communication, Ocouer, Christopher Willits, Marconi Union, Eluvium, Ólafur Arnalds, Balmorhea.
Example from Catalyst - https://www.youtube.com/watch?v=2fb5_zVk2gY&t=1h46m48s
In that order. All solid. If you want more you should checkout the Rephlex records current and previous artists list. All really solid ambient focused electronic music.
(via: http://www.wisp.kaen.org/ )
Warp Records (record label that Aphex Twin and Boards of Canada are a part of) has built a really solid catalogue over the years
Some favorites:
- The Alarm Will Sound collective has an album called Acoustica where they made acoustic-instrument-based covers of Aphex Twin songs. https://www.alarmwillsound.com/
- The Bad Plus covered Aphex Twin's Flim on their These Are the Vistas album. https://www.youtube.com/watch?v=HeMre0Sp7o4
Both Alarm Will Sound and The Bad Plus are somewhat different, quite interesting directions to explore for other music you might enjoy programming to.