That’s a good call, and similarly I instantly thought of Johnny Cash and Bob Dylan when I read the OP and scanned my inner Cash and Dylan song databases for ghost songs. They both have done so many classic folk songs and wrote dark tales on their own that they seemed the best sources. I soon thought of “Long Black Veil”, but still draw a blank for Dylan, though “The Man In The Long Black Coat” has a very supernatural air about him and may be a ghost, but maybe also the devil or death itself. I’ll throw it in for consideration anyway. Then, there’s the great famous line from “Visions Of Johanna”, “the ghost of electricity howls in the bones of her face”, and though it’d be stretch to call it a ghost song, it has a spooky and otherworldly atmosphere. Then maybe it was only the drugs back then…