Okay. What is one to make then of Japan's Zazen Boys? If not for their name (literally translated, zazen means "sitting meditation"), I might not have noticed them at all, but now that I have, I can't quite reconcile their name with their music. But is that their short-coming or mine?
The fact that I can find nothing "zen-like" in their math-core music doesn't mean that their music isn't "zen-like," it merely means that I'm searching, and in Zen, it can be said, "Seek, and ye shall not find." How could any music not be zen-like?
Consider the video for their song Weekend, above. Both the composition and the performance are tight and exact, and no performer wastes so much as a motion that is not necessary to the composition, even while the guitarist is squeezing out insane, Adrian Belew-type riffs.
They don't seem to be afraid of emptiness, and allow big, silent passages in their compositions. They took this to comical extremes during a live performance of Daruna (Japanese for "dharma") in Japan, where the rests between notes were long enough to allow them to enjoy a refreshing beverage.
So maybe there is a Zen connection there after all.