Vinyl LP pressing. Panopticon is an influential North American black metal band originally from Louisville Kentucky. The band is the unilateral expression of mastermind Austin Lunn, also of the death-doom band Seidr.... On The Subject of Mortality is Panopticon's third full-length and most melodic record. Whereas Panopticon's other releases have been rooted heavily in a blugrass/black metal hybrid sound... On The Subject of Mortality is a more ambient album filled with post-metal obtuse dronescapes, Godspeed-like slow builds and blown out blast beats.