Boris is from Japan, but that’s the least interesting thing about the band. Within the broad category of heavy metal, the band is a shape-shifting force of creative spontaneity that marries the physicality of hard rock with the intellectuality of the avant-garde. Boris’ frequent collaborations — with Sunn O))) and Merzbow, for example — and ever-changing modes produce albums that, good or bad, are always fascinating. Like Sonic Youth, Boris’ career trajectory has been marked by music that is alternately inscrutable and accessible, with heavy leanings toward noise art and pop. (For all its weirdness, 2005’s now-classic Pink was as immediate as anything by Motorhead and latter-day Sonic Youth.) For those who believe that post-rock will eat itself, here’s a band that consumes everything in its path.