In Philip K. Dick’s short story, “What the Dead Men Say” (1964), businessman Louis Sarapis dies unexpectedly. According to the terms of his will, his corpse is to be deposited in a mortuary where his consciousness can be immediately (but only temporarily) restored, a post-mortem state similar to suspended animation. Dick termed this post-mortem state “half-life.” He later used the idea of “half-life” in one of his greatest novels, Ubik (1969).
Eventually, the consciousness of those in half-life begins to deteriorate, becoming garbled and incoherent—rather like the dying words of gangster Dutch Schultz, whose delirious non-sequiturs and novel collocations such as "French-Canadian bean soup" inspired William Burroughs to write a screenplay about Schultz's dying moments.
Consider the following songs as occurring during the singer’s half-life, or alternatively, concluding at the moment of death; "D.O.A." is the classic example. There is, of course, a certain degree of self-consciousness in these songs, unlike the last words of Dutch Schultz.
What the Dead Men Say:
Lefty Frizzell – Long Black Veil (1959)
Marty Robbins – El Paso (1959)
Porter Wagoner – Green, Green Grass of Home (1965)
Fleetwood Mac – Blood on The Floor (1970)
R. Dean Taylor – Indiana Wants Me (1970)
Bloodrock – D.O.A. (1971)
Al Kooper – Nightmare #5 (1971)