I've espoused the great unifying properties of Trioscapes before, but then I was talking about getting your non-jazz friends into something jazzy. Now I'm talking about getting your non-instrumental friends into something that doesn't have any words to it. Trioscapes is the band for the job, and since I've already featured a couple of their songs before, tonight "Curse of the Ninth" is the song for the job.
In metal influencing terms, jazz is the new classical. Back in the day classical music had a heavy influence on some of the greats of the genre (like Metallica, just to name one example) but now jazz is where it's at (take Between the Buried and Me, to again cite but a single instance). Why not check out the very groovy intersection of the metal, jazz, and instrumental worlds that is Trioscapes? You'll be glad you did.