“We're told time and time again—rock and roll is no longer the sound of youth culture. In a backwards way, Spanish punk band Mourn prove this; none of their members are older than 18, and if they were a pop or hip-hop group, somehow this would be a talking point of far less interest. As far as guitar music goes, teens are typically either lauded as prodigies or punks, gawked at or given backhanded ”