I'll get around to posting my list eventually.
As for now, one of my favorites of the year was
Smoke Song by Vibracathedral Orchestra.
Words don't really do this kind of music justice, though I'll try my best. It's freeform droning and folk colliding in a vacuum with dozens of instruments flying in and out of the soundscape as the songs progress. Very long, mind-melting compositions that are bound to make any drone-lovers go nuts.