From the moment it was announced last month, it was clear that Goodbye Quiet Arch was never going to be your everyday swansong. Too monumental to call a gig; much too highly-charged to truly deem a farewell (Quiet Arch suddenly ceasing to exist? Not a hope.) In truth, it all felt a little unknowable. Momentous, yes, but also laced with the strong hint of something yet to emerge. This morning, suspicions and worst fears lodged in the back of one’s mind were sadly confirmed. Lyndon Stephens was gone. With all the heaviness of Bowie and Blackstar, the timing was heavy but, in…