Millolab says "Headphones highly recommended. Gear used: Waldorf Blofeld, Arturia Microbrute, Elektron Machinedrum, Akai mpc500 as main sequencer, Korg Ms2000, Clavia Nord Modular G2 and DSI Tetr4. Hardwire DL7 and RV8 were used on the Tetra."
I particularly like the gentle percussive sounds from the Machinedrum.
Maisonvague says "It's an original composition written specifically for the video employing 18th century contrapuntal techniques. I had Bach in mind during parts of it -- especially his Two-Part Inventions. But there are hints of Schubert and Mozart in there as well."
Ken MacBeth makes these very nice but expensive synthesizers in Edinburgh. (It's the blue one at top-right in the video.) It feels good that these things are designed just down the road from here, but I can't afford to buy them:(
Just about as far as you can go with modular synths! Not an especially cheap way to heat your house but wonderfully mad. No melody to speak of here but a great soundscape produced very organically. About 8 minutes in, it edges into more tonal territory with exhilarating effect.