Opus Kink are a Brighton band who have been making a lot of press noise, and they'll release their debut album The Sweet Goodbye this summer. Their sound is hard to describe. It's a churning and vaguely countrified take on post-punk, with deep and sonorous baritone vocals and lots of jazzy horns. Last month, I wrote, "They remind me a bit of Morphine, if Morphine were both British and hyperactive, which means they don't actually remind me that much of Morphine." But their new song doesn't sound anything like that. It's a whole other trip. We've already posted Opus Kink's The Sweet Goodbye singles " I'm A Pretty Showboy " and " Come Over, Do Me Wrong ," and their new track "The Head Tree" takes a hard zag away from those tracks. "The Head Tree" features the members of a fellow Brighton band, folk-punks the New Eves, and a pounding and frenetic house beat that doesn't sound like anything I've heard from them.…