Plantasia, Cocteau Twins, Gabor Szabo, even Hallucinogen,? Damn that's pretty much the stuff I've been listening to the last few months.
I'll add these, might fit your palette
https://www.youtube.com/watch?v=TIJQlW5_CcIhttps://www.youtube.com/watch?v=vqyTi-Hr9SUhttps://www.youtube.com/watch?v=N0LZ20ppkNohttps://www.youtube.com/watch?v=mRfwdJx0NDE (this is one of the best boiler room sets I've encountered)
https://www.youtube.com/watch?v=xoA4_G0BSQYFor long sessions I also go back to these:
https://www.youtube.com/watch?v=1oOmUi4HGt0https://www.youtube.com/watch?v=Lx7hhA0AitsI will also add that the sim city 4 complete ost is amazing to draw to, and I've never even played the game. It's so work-flow enhancing, it makes those 3+ hour drawing sessions seem like one motion.
I've also been relistening to Talk Talk's albums,
they still have something magical. But the lyrics are rather distracting while drawing.
