Above all else, the Wikipedia entry on post-rock exemplifies how difficult it can be to pin down movements in music: Did the genre begin in the ’90s? The ’80s? The term was coined a little over 20 years ago, in 1994, by Simon Reynolds in the pages of Mojo. Perhaps, however, its vocabulary of textures and rhythms dates back further, to, say, the Velvet Underground, because crap, they invented every