“Not necessarily in a new age way, but maybe every musician is channelling something outside of them- selves,” muses Sunn O)))’s Stephen O’Malley, sitting in an Old Street studio.

Even if you’re not a Sunn O))) fan, you’re probably familiar with the band’s logo, which is quite distinctive: Here’s the thing, though — the band didn’t design that logo! And I don’t mean the way ...