Since I'm talking about Karl Edward Wagner I'll throw in a humorous (hopefully) little story. A few years back when I picked up the Nightshade Books volume Midnight Sun: The Complete Short Stories of Kane, I came across Wagner's story 'At First Just Ghostly' for the first time. Now you may recognize where the title comes from immediately, but I didn't. I just thought it a nifty turn of phrase and at that time I wasn't familiar with Karl's tendency to pull titles from song lyrics.
Anyway, that summer my workplace was playing an oldies station on the plant radio, which I can just barely hear in the office where I do my AutoCAD drafting and I thought I heard someone singing the line At First Just Ghostly. I sort of recognized the song as one I'd heard a lot as a kid, so I got up and went out into the plant in time to catch the second verse and then the chorus:
And so it was that later
as the miller told his tale
that her face, at first just ghostly,
turned a whiter shade of pale
This is, of course Procol Harum's famous 1967 song A Whiter Shade of Pale. Guess I'd just never paid much attention to the lyrics...