A few hours spent with the Essex Green’s back catalog, and you get to wondering if they weren’t born a couple generations too late. A number of indie bands may be an exercise in “spot-the-influence,” but with the Green it’s often hard to make up your mind exactly which 60s band they’re aiming for. For example, is the intro of “Snakes in the Grass” more Paul Revere and the Raiders (think “Indian Reservation”) or Monkees…