His work as The Threshold HouseBoys Choir and with SoiSong is great too. But Coil is in my opinion the pinnacle of electronic music and one of the reasons is that they worked together with many other artists through their carreer.
And since the Hacker News crowd is often interested in psychedelics, it's worth mentioning their collaboration with Drew McDowall, Time Machines, great music to trip to:
https://www.youtube.com/watch?v=efXXPYkBNuM